Correct Answer:
A. When will a car be bought by you?
Foundational Concept: When changing an interrogative sentence with a 'Wh-' word from active to passive voice, the 'Wh-' word remains at the beginning. The structure typically becomes 'Wh- word + helping verb + object (as subject) + be + past participle + by + original subject?'.
Correct Option: "When will a car be bought by you?" correctly converts the active voice question to passive voice. "A car" (the object) becomes the subject, "buy" becomes "be bought," and "you" becomes "by you." The 'When' and interrogative structure are preserved.
- Option B: "When a car will be bought by you?" is incorrect because it loses the interrogative structure; "will" should precede "a car" in a question.
- Option C: "When will be a car bought by you?" has an incorrect word order; "be" should come after the subject "a car."