There are six persons A, B, C, D , E and F. C is the sister of F.
B is the brother of E's husband. D is the father of A and grandfather of F.There
A
One
B
Two
C
Three
D
Four
Correct Option - D
Explaination
D is father of A and grandfather of F.So, A is father of F. Thus, D and A are the two fathers. C is the sister of Fthe daughter of A Since there is only one mother, it is evident that