If A $ B means A is the brother of B; B * C means B is the son of C; C @ D means C is the wife of D and A # D means A is the son of D, how C is related to A?
Answer: D
A $ B → A is the brother of B
B * C → B is the son of C
Hence, → A is the son of C
C @ D → C is the wife of D
Hence, → C is the mother of A.