Question

If A # B means A is brother of B, A $ B means A is husband of B, A % B means A is mother of B, A @ B means A is daughter of B, then which of the following expressions shows that R is the sister-in-law of U?

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A R % S # T @ U

B R % S @ T # U

C S $ T % U # R

D U # T % S $ R

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