A is the brother of (B)C is the mother of (B)D is the father of (C)How is D related to A?

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Accepted Answer

1. A is the brother of B, and C is the mother of B. So A and B are siblings and C is also the mother of A.
2. D is the father of C. So $D$ is one generation above $C$.
3. The chain is $D 	o C 	o A$. So D is the grandfather of A.

FINAL_ANSWER: b

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