The old lady said to her son, " Is it not your duty to help me in my old age ?"

A ) The old lady asked her son if it were not his duty to have.

B ) The old lady asked her son if it was not his duty to help her in her old age ✅

C ) The old lady said to her son, "is it not your duty to help me in my old age?"

D ) The old lady asked her son if it were not his duty to help her