In a group of five friends: Alice, Bob, Charlie, David, and Eva, the following conditions are given: 1) Alice and Bob cannot be selected together. 2) Charlie must be selected if David is selected. 3) Eva can be selected only if Alice is not selected. Which of the following groups can be selected?

B. BOB, CHARLIE, DAVID

A committee of four members is to be formed from the following candidates: 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 only if P is not selected. Which of the following combinations is valid?

C. Q, R, S

From the items A, B, C, D, and E, the following selection conditions apply: 1) A and B cannot be selected together. 2) C must be selected if D is selected. 3) E can only be selected if A is not selected. Which of the following selections is possible?

B. B, C, D

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

In a race, the participants are Anna, Ben, Chris, and Diana. Anna finishes before Ben but after Chris. Diana finishes after Ben. Who finishes first?

C. CHRIS