Directions: Answer the following questions from given information?s. 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 are two fathers. Three brother and a mother in the group. Who is the mother?

• A.  A 
• B.  B
• C.  3  
• D.  E