In a cooking competition, chefs X, Y, Z, and W completed their dishes in a certain order. X finished before Y but after Z. W finished after Y. What is the order of completion?

A. Z, X, Y, W

In a group of five friends: Alice, Bob, Charlie, David, and Eva, the following conditions apply: 1) Alice cannot be selected if Bob is selected. 2) Charlie can only be selected if David is also selected. 3) Eva can be selected regardless of the others. Which of the following groups can be selected?

C. CHARLIE, DAVID, EVA

During a meeting, four participants, M, N, O, and P, spoke in a specific order. M spoke before N but after O. P spoke after N. What is the correct speaking order?

A. O, M, N, P

In a group of five friends: A, B, C, D, and E, the following conditions are given: A is taller than B but shorter than C. D is shorter than E but taller than A. Who is the tallest among them?

C. C

A committee of four members is to be formed from the following individuals: P, Q, R, S, and T. The selection criteria are: 1) P and Q cannot be selected together. 2) R must be included if S is selected. 3) T can be included regardless of the others. Which of the following combinations meets the criteria?

B. Q, R, S, T