$A + B$ means $A$ is the daughter of $B$; $A - B$ means $A$ is the husband of $B$; $A \times B$ means $A$ is the brother of $B$.
If $P \times Q + R$,which of the following is true?

• A
  $P$ is the brother of $R$
• B
  $P$ is the uncle of $R$
• C
  $P$ is the son of $R$
• D
  $P$ is the father of $R$