Step-by-Step Family Tree Deduction

To determine the relationship between C and A, we can construct the family tree from the given clues.

1. "D is grandmother of A and mother of B."
   This establishes three generations: D is in the first generation, her child B is in the second, and B's child A is in the third.
2. "C is wife of B and mother of F."
   This tells us that B and C are a married couple. Since C is the wife, she is the mother of F. This makes B and C the parents of both A and F, meaning A and F are siblings.
3. "F is the granddaughter of E."
   We already know D is F's grandmother (as she is B's mother). Therefore, E must be F's other grandparent, the grandfather. This means E is married to D.

Summary of Family Structure

• First Generation (Grandparents): E and D are a married couple.
• Second Generation (Parents): B (son of E and D) and C are a married couple.
• Third Generation (Children): A and F are the children of B and C.

Conclusion

The question asks for the relationship of C to A. Since A is the child of B and C, C is the mother of A.