7. Scenario for Q7-9: A manager must assign exactly five tasks (A, B, C, D, E) to five employees (P, Q, R, S, T), with each employee receiving one task. The following conditions apply: 1. If P performs A, then Q must perform B. 2. R cannot perform C unless T performs D. 3. S can only perform E if Q performs B. If Q performs B, which task must S perform?