1.

If D is the brother of B, how B is related to C? To answer this question which of the statements is/are necessary?n1. The son of D is the grandson of C.n2. B is the sister of D.

A. Only 1
B. Only 2
C. Either 1 or 2
D. 1 and 2 both are required
Answer» B. Only 2


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