In a family there are six members A, B, C, D, E, F. A and B are married couple. D is only son of C. A is father of E, who is granddaughter of F, whose husband has died and C is brother of A. How many male members are in the family?

Correct answer: 4

Explanation: ✅ Correct Answer: B. 4 📚 Explanation: Based on the family description: A and B (couple), C and A (brothers), D (son of C), and F's husband (deceased). The males identified are A, C, D, and F's late husband. This results in a total of 4 male members in the family line. Drawing a family tree is the most efficient way to solve this type of blood relation problem.