A group of six people: P, Q, R, S, T, and U have the following selection criteria: 1) P and Q must be selected together. 2) R cannot be selected if S is selected. 3) T must be selected if U is selected. Which of the following combinations meets these criteria?

Answer: C. P, Q, T, U
Combination c meets all criteria: P and Q are together, R is not selected with S, and T is selected with U.