Question

If expression ‘F @ B $ C ? G @ D ? E’ is true, then how is B’s mother’s father in law is related to F’s mother’s father?

Study the information below and answer the questions. W&X means W is the brother of X W $ X means W is the daughter of X W # X means W is the husband of X W@X means W is the son of X W?X means W is the wife of X
A Sister
B Mother-in-law
C Father
D Uncle
E None of these
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