In the following question on active and passive voice in English grammar, choose the option that correctly changes the sentence They will advise me about the price of the accessories into the passive voice.

Introduction / Context:
This question focuses on converting a sentence from the active voice to the passive voice. Voice transformation is a very common topic in English grammar sections of competitive exams. The original sentence describes a future action: They will advise me about the price of the accessories. In the passive voice, the object of the active sentence becomes the subject, and the tense must remain future while forming the correct be verb structure with the past participle advised.

Given Data / Assumptions:

• Active voice sentence: They will advise me about the price of the accessories.
• Subject in active: They.
• Object in active: me.
• Tense: simple future.
• We need a passive voice sentence with correct tense and auxiliary verbs.

Concept / Approach:
To convert from active to passive voice in simple future tense, we follow the pattern: will or shall plus be plus past participle. The object me becomes the subject I in the passive sentence. The main verb advise becomes the past participle advised. In standard British exam English, I shall be advised is acceptable and preserves the future sense. There is no need to introduce perfect tense auxiliaries such as have been or would have been, because the original sentence does not use a perfect tense.

Step-by-Step Solution:
Step 1: Identify the tense in the active sentence. The phrase will advise shows simple future tense. Step 2: Identify subject, verb and object. Subject: They. Verb: will advise. Object: me. Step 3: In passive voice, make the object the new subject. Me becomes I. Step 4: Use the simple future passive structure: I shall be advised. Step 5: Keep the rest of the information, about the price of the accessories, unchanged after the verb phrase.

Verification / Alternative check:
The correct passive sentence should read: I shall be advised about the price of the accessories. This matches the rule future passive equals will or shall plus be plus past participle. Also, the meaning remains the same: in the future, advice will be given to me. There is no suggestion of completion before another future time, so perfect forms like will have been advised are not appropriate. Therefore, option I shall be advised about the price of the accessories is correct.

Why Other Options Are Wrong:

• I will have been advised about the price of the accessories: This is future perfect passive, not simple future, and does not match the original tense.
• I would have been advised about the price of the accessories: This uses a conditional form would have been, which changes the meaning and tense.
• I would have had been advised about the price of the accessories: This is grammatically incorrect and overly complex, not a standard English structure.

Common Pitfalls:
Many students mistakenly change the tense when shifting from active to passive, especially by adding have or had unnecessarily. Another common mistake is to focus only on the auxiliary verbs and forget to convert the object me to the subject I. To avoid these errors, always identify the tense first, then apply the exact passive pattern for that tense and carefully move the object into the subject position. Practice with different tenses will make such transformations routine and accurate.

Final Answer:
The correct passive voice form is I shall be advised about the price of the accessories., which preserves the simple future tense and keeps the original meaning intact.