In the following question, a sentence has been given in the Active/Passive voice. Out of the four alternatives suggested, select the option which best expresses the same sentence in the Passive voice: I wrote a harsh letter to the editor.

Introduction / Context:
This question checks your ability to convert a simple past sentence from Active to Passive voice. The original sentence is: "I wrote a harsh letter to the editor." In many formal and exam contexts, we want to highlight the object ("a harsh letter") rather than the doer ("I"), so the Passive voice is appropriate.

Given Data / Assumptions:

• Active sentence: I wrote a harsh letter to the editor.
• Subject: "I."
• Object: "a harsh letter."
• Indirect object / complement: "to the editor."
• Tense: simple past ("wrote").

Concept / Approach:
For simple past Active sentences, the Passive structure is: object + "was/were" + past participle + "by" + subject. Here, "a harsh letter" becomes the subject in the Passive voice, followed by "was written." The original subject "I" follows "by." The phrase "to the editor" is kept at the end of the sentence as it specifies the receiver of the letter. The tense must stay in simple past to reflect a completed action in the past.

Step-by-Step Solution:
Step 1: Identify the object: "a harsh letter." Step 2: Move it to the subject position: "A harsh letter ..." Step 3: Convert "wrote" (simple past) into Passive form "was written." Step 4: Add the agent with "by me": "... was written by me ..." Step 5: Maintain the phrase "to the editor" at the end: "A harsh letter was written by me to the editor."

Verification / Alternative check:
Reverse the Passive sentence "A harsh letter was written by me to the editor" back into Active voice: "I wrote a harsh letter to the editor." This matches the original sentence exactly—same subject, object, tense, and additional phrase—so the transformation is correct and complete.

Why Other Options Are Wrong:
Option A: "Writing of a harsh letter has been done by me..." uses present perfect and a clumsy nominal form ("Writing of a harsh letter") which is not a straightforward Active–Passive transformation. Option B: "I myself have written..." uses present perfect, adds unnecessary emphasis ("myself"), and changes the style and structure instead of giving a true Passive voice. Option C: "The editor will get a harsh letter which I wrote" changes the focus and tense structure. It is not a direct Passive equivalent but a rephrased active idea.

Common Pitfalls:
A major mistake is thinking that any longer or more formal-sounding sentence is better. In sentence transformation questions, the best answer is usually the one that cleanly applies the standard Passive rule without changing tense, adding extra auxiliaries, or rewording unnecessarily. Avoid forms like "writing of" or "has been done" unless the original tense and context require them.

Final Answer:
The correct Passive voice sentence is: "A harsh letter was written by me to the editor."