If A + B means that A is the father of B, A $$\div$$ B means that A is the mother of B, A - B means that A is the brother of B then which of the following expression shows that P is the paternal grandmother of R?

A

$$Q \times P + R$$

B

$$P \times Q - R$$

C

$$P + R \times Q$$

D

$$P \times Q + R$$