Questions :

Options :
- Why had the management committee rejected the highly confidential company proposal ?
- Why the management committee had rejected the highly confidential company proposal ?
- The management committee had rejected the highly confidential company proposal, why ?
- Why did the management committee reject the highly confidential company proposal ?
correct answer : a)
Explanation:
The given sentence is an interrogative in passive voice: “had been rejected by the management committee.” The tense is past perfect (had + V3). To convert into active voice, we make the agent “management committee” the subject and keep the same tense and question structure.
Passive pattern: Why + had + object + been + V3 + by + agent?
Active pattern: Why + had + agent + V3 + object?
Why option (A) is correct: “Why had the management committee rejected the highly confidential company proposal?” keeps past perfect tense (“had rejected”) and correct interrogative order.
Why other options are incorrect:
Option B: incorrect question formation; missing auxiliary inversion after “Why.”
Option C: unnatural placement of “why” and incorrect interrogative style.
Option D: changes tense to simple past (“did reject”), not past perfect.
“So the correct answer is (a)”