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Blood relations with symbolic operators: Choose the chain that implies “C is the son of M.” Operator meanings: A + B ⇒ A is the brother of B A - B ⇒ A is the sister of B A x B ⇒ A is the father of B Select the expression that ensures C is M's male child.

Difficulty: Medium

M - N x C + F
F - C + N x M
N + M - F x C
M x N - C + F

Correct Answer: M x N - C + F

Explanation:

Decode the correct chain (d)
M x N ⇒ M is father of N. N - C ⇒ N is sister of C ⇒ N and C are siblings, so they share parent M. C + F ⇒ C is brother of F ⇒ C is male.

Conclusion
C is the son of M. Other options fail to establish both parentage to M and male gender for C.

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