Blood relations — How is A related to B? Statements: I. A is the sister-in-law of C; C is the daughter-in-law of B, who is the wife of D. II. B is the mother of A's son's only uncle's son.

Question

Solve this multiple-choice question and choose the correct option.

Accepted Answer

Introduction / Context:Determine A's relationship to B from family-role statements. We must see if a unique relation (e.g., daughter, daughter-in-law, niece) can be fixed. Given Data / Assumptions: B is explicitly stated as the wife of D (so B is female). C is B's daughter-in-law (C married to a child of B). A is C's sister-in-law (could be spouse's sister or sibling's spouse). II references A's son's only uncle's son, for whom B is the mother. Concept / Approach:Enumerate family trees consistent with each statement; check if B's relation to A is unique. Step-by-Step Solution: From I: If C married B's son, then C's sister-in-law A could be (1) another daughter of B (i.e., the son's sister), or (2) the wife of C's brother (outside B's immediate family). Thus B could be A's mother (case 1) or not related by blood (case 2).From II: 'A's son's only uncle' could be A's brother (mother's side) or A's husband's brother (father's side). The uncle's son's mother is B. This allows multiple placements for B (B could be A's mother if the uncle is A's brother, or B could be A's mother-in-law if the uncle is husband's brother whose mother is B, etc.).Combining I and II still leaves multiple consistent configurations (mother vs mother-in-law vs aunt by marriage) without contradiction. Verification / Alternative check:Attempting to fix genders and unique siblings still yields several valid trees; no single relation is forced. Why Other Options Are Wrong: I alone / II alone: each permits more than one relation. Either alone sufficient / Both together sufficient: contradicted by multiple consistent family trees. Common Pitfalls:Assuming 'sister-in-law' only means spouse's sister; it can also mean sibling's wife. Also, interpreting 'only uncle' as maternal-only or paternal-only without basis. Final Answer:Both Statements I and II together are not sufficient.

Blood relations — How is A related to B? Statements: I. A is the sister-in-law of C; C is the daughter-in-law of B, who is the wife of D. II. B is the mother of A's son's only uncle's son.

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