Step 1: From previous analysis:
- A is son of C → A is male, C is parent (gender unknown yet).
- E is daughter of A → E is female.
- D is daughter of F → D is female.
- F is mother of E → F is female.
Step 2: Since F is mother of E and A is parent of E, A and F are spouses. A is male, F is female.
Step 3: C is parent of A. C could be male or female. The family has 6 members: A, B, C, D, E, F.
Step 4: Identified genders: A (mal(e), E (femal(e), D (femal(e), F (femal(e). That's 1 male, 3 females so far. C and B unknown.
Step 5: Since one couple has parents and children, the couple is A and F. Their children: E and D (both femal(e). C is parent of A, so C is grandparent. The sixth member B must be the other spouse of C or another child.
Step 6: If C is male, then B is female (spous(e), making 4 females. If C is female, then B is male, making 3 females. The question likely expects 3 female members.
Step 7: Final Answer: Three.