Question

I said to him, "Why are you working so hard?" (change to indirect speech) 2
A) I asked him why he was working so hard
O B) I asked him why was he working so hard
C) I asked him why he had been working so hard
OD) I asked him why he had been working so hard​

Answer 1

Answer:

Option A

I asked him why he was working so hard.

Answer 2

Answer:

I asked him why was he working so hard.

Explanation:

Since this is interrogation, "asked" will be used, not whether, since this is not a yes/no question. The reporting speech is in simple present, which is supposed to be converted into simple past.

Hope you find it helpful.