Sita is the niece of Ashok. Ashok’s mother is Lakshmi. Kalyani is Lakhshmi’s mother. Kalyani’s
husband is Gopal. Parvathi is the mother-in-law of Gopal.
We draw the flow chart of given information as follows, circle around the alphabet indicates that that person is a lady.
Sita is Gopal’s great grand-daughter . So c is the answer.