1. A, B, C, D, E and F are members of a club. There are two married couples in the group. A is the brother of D"s husband. C is the President of All India Working Women"s Association. F, a sitarist, is a bachelor. B"s wife is not a member of the club. Four of them belong to the same family. B and F are colleagues in the same organisation. Which of the following groups consist of the members of the same family?