If A @ B means A is the mother of B , A # B means A is the brother of B , A * B means A is the sister of B , A % B means A is the father of B , then which of the following indicates the relationship R is the grandmother of Q?

• A. R @ P * S % Q
• B. R * Q $ S # P
• C. P @ R % S * Q
• D. P $ R @ S * Q