If ‘A + B’ means ‘A is the son of B’, ‘A – B’ means ‘A is the daughter of B’, ‘A & B’ means ‘A is the father of B’ and ‘[email protected]’ means ‘A is the mother of B’, then what does [email protected] mean?

• A. P is the son of Q
• B. P is the sister of Q
• C. P is the daughter of Q
• D. P is the brother of Q