Four persons A, B, C and D consisting of two married couples are in a group. Both the women are shorter than their respective husbands. A is the tallest among the four. C is taller than B. D is B's brother. In this context, which one of the following statements is not correct?

• A. All four have family ties.
• B. B is the shortest among the four.
• C. C is taller than D.
• D. A is B's husband.