In the question given below, a part of the sentence is in bold and italicised. Below are given alternatives to the bold and italicised part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose option 'D' as the answer.
If the room had been brighter, I would have been able to read for a while before bed time.
If the room was brighter
If the room are brighter
Had the room been brighter
No improvement
Correct answer is C
No explanation has been provided for this answer.