‘$$A + B$$’ means ‘$$A$$ is the wife of $$B$$’.
‘$$A - B$$’ means ‘$$A$$ is the daughter of $$B$$’.
‘$$A \times B$$’ means ‘$$A$$ is the sister of $$B$$’.
‘$$A \div B$$’ means ‘$$A$$ is the brother of $$B$$’.
If $$P \div M \times R - Z + Q$$, then how is $$P$$ related to $$Q$$?

A

Nephew

B

Brother

C

Son-in-law

D

Son