In the following question, a sentence is given in the active voice. Out of the four alternatives suggested, select the one which best expresses the same meaning in the passive voice: "Sunita has written a story which fascinates everyone."

Introduction / Context:
This question tests your understanding of transforming sentences from active voice to passive voice while preserving the original meaning. The active sentence is "Sunita has written a story which fascinates everyone." You must select the passive version that correctly focuses on the object (everyone or the story) and maintains proper tense as well as logical relationships.

Given Data / Assumptions:
- Active sentence: Sunita has written a story which fascinates everyone.
- Options are four different transformations, some in passive voice and some partly in active voice.
- The goal is to preserve both ideas: (1) Sunita has written a story and (2) that story fascinates everyone.

Concept / Approach:
When changing from active to passive, the object of the active sentence becomes the subject of the passive sentence. Also, the tense of the main verb must be correctly converted. Here, "has written" is present perfect, so in the passive it becomes "has been written". We can either make "a story" or "everyone" the subject in the passive version, depending on which part we focus on, but the best passive choice must still represent both key facts and be grammatically correct.

Step-by-Step Solution:
Step 1: Identify the subject, verb, and object in the active sentence. Subject: Sunita; verb: has written; object: a story; additional clause: which fascinates everyone.Step 2: A straightforward passive of the main clause would be "A story has been written by Sunita". This is present in option A, but it keeps the subordinate clause "which fascinates everyone" exactly as in the active sentence.Step 3: Option B chooses "Everyone" as the subject: "Everyone is fascinated by the story which has been written by Sunita." This still uses the correct passive of the verb fascinate and clearly indicates the story has been written by Sunita in present perfect passive.Step 4: Option C "Every one fascinates the story which is written by Sunita" is ungrammatical because a story is not something you fascinate; you are fascinated by a story.Step 5: Option D "Story written by Sunita fascinates everyone" is not actually passive; it is an active construction with a reduced relative clause. It does not fulfil the requirement of transforming into passive voice.Step 6: Option B best expresses the meaning in proper passive voice and preserves both the idea of fascination and the information about Sunita as the writer.

Verification / Alternative check:
Compare the original and option B for meaning: "Sunita has written a story which fascinates everyone" versus "Everyone is fascinated by the story which has been written by Sunita." Both sentences convey that Sunita is the author and that the story has a strong impact on everyone. Tense is correctly handled: "has written" becomes "has been written", and the simple present "fascinates" becomes the passive "is fascinated". The logical relationships remain unchanged.

Why Other Options Are Wrong:
- Option A: "A story has been written by Sunita which fascinates every one." This is mostly correct, but the relative clause structure is slightly awkward and the focus is more on the story than on the fascination of everyone. Exam keys typically prefer the clearer and fully passive expression in B.
- Option C: Uses the verb fascinate incorrectly; people are not the subject that fascinates the story.
- Option D: Is not in passive voice; it remains active in form, so it does not answer the question as asked.

Common Pitfalls:
Students sometimes confuse any sentence that includes "by" with passive voice, even when the main clause remains active. Others fail to convert tense correctly when forming the passive. To avoid errors, always identify the main verb and its object, preserve the tense structure, and check that meaning is unchanged. Practising with present perfect transformations like "has written" to "has been written" helps solidify your understanding of this pattern.

Final Answer:
The best passive form is "Everyone is fascinated by the story which has been written by Sunita."