In a group of five friends: Alice, Bob, Charlie, David, and Eva, the following conditions apply: Alice is not friends with Bob. Charlie is friends with both Alice and David. Eva is friends with Bob but not with David. Who can be selected as friends of Charlie?

C. DAVID

In a puzzle involving four animals: Lion, Tiger, Bear, and Wolf, the following rules apply: The Lion cannot be selected if the Tiger is selected. The Bear can only be selected if the Wolf is not selected. Which of the following selections is valid?

C. LION, BEAR, WOLF

In a selection of five books: A, B, C, D, and E, the following conditions apply: Book A cannot be selected if Book B is selected. Book C can only be selected if Book D is not selected. Which of the following combinations is valid?

C. A, D, E

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