Four friends, A, B, C, and D, are sitting in a row. A is to the left of B but to the right of C. D is not at either end. What is the correct order from left to right?

A. C, A, B, D

In a circular seating arrangement, A is sitting to the immediate left of B, and C is sitting to the immediate right of B. If D is sitting opposite A, who is sitting to the immediate right of C?

D. D

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

C. ALICE, DAVID, EVA

In a family, there are three siblings: X, Y, and Z. X is older than Y but younger than Z. If Z is the oldest, who is the youngest?

B. Y

From the following items: X, Y, Z, W, and V, the selection conditions are: 1) X and Y cannot be selected together. 2) Z must be selected if W is selected. 3) V can only be selected if X is not selected. Which of the following selections is valid?

D. W, Z, V