A girl introduced a boy as the son of the daughter of the father of her uncle. The boy is girl`s

A. BROTHER

Pointing to a photograph, Vipul said, "She is the daughter of my grandfather's only son." How is Vipul related to the girl in the photograph ?

B. BROTHER

Arun said, "This girl is the wife of the grandson of my mother."
Who is Arun to the girl ?

D. FATHER-IN-LAW

Deepak said to Nitin, "That boy playing with the football is the younger of the two brothers of the daughter of my father's wife."
How is the boy playing football related to Deepak ?

B. BROTHER

Introducing a man to her husband, a woman said, "his brother's father is the only son of my grandfather."
How is the woman related to his man ?

C. SISTER