Pointing to a man, “Rita said” He is the brother of daughter of the wife of my husband’. How is the man related to Rita?

Question

Pointing to a photograph. Bajpai said, "He is the son of the only daughter of the father of my brother." How Bajpai is related to the man in the photograph?

Answer 1

That man is the brother of a girl/woman who is the daughter of a wife of a man who is also Rita's husband { If Rita is the only wife her husband has then Rita is the wife here. }
Therefore that man { mentioned in the question }must be the son of Rita.

Answer 2

The man is Rita's son .