$$A + B$$ means ‘A is the wife of B’;
$$A - B$$ means ‘B is the daughter of A’;
$$A \times B$$ means ‘B is the brother of A’;
$$A \div B$$ means ‘A is the father of B’.
If, $$P + R \times T - Q + S \div U$$, then how is $$P$$ related to the mother of $$U$$?

A

Maternal grandmother

B

Mother

C

Paternal grandmother

D

Aunt