Direction: Study the following information carefully and answer the given questions.

There are eight members in the family, in which there are only two married couples. Either both or none of the parents is alive. Amu is the father-in-law of Rahul, who is the brother-in-law of Ravi. Priya is the sister of Ravi and Karan. Karan is the maternal uncle of Vani. Monu is the brother of Bhanu, who is the mother of Priya. Amu has only one son.