1.  Pointing to the woman in the picture, Rajiv said, "Her mother has only one grandchild whose mother is my wife. "How is the woman in the picture related to Rajiv ?

A. Cousin
B. Wife
C. Sister
D. Data inadequate
E. None of these

Answer: Option B

Explanation:

Rajiv's wife's child --> Rajiv's child.

The woman's mother is the grandmother of Rajiv's child. So the woman is Rajiv's wife.