A, B, C, D, and E are five different colored balls: Red, Blue, Green, Yellow, and Black. The following conditions are given: The Red ball is not next to the Blue ball. The Green ball is next to the Yellow ball. The Black ball is not next to the Red ball. Which ball is next to the Yellow ball?

D. GREEN

A team of four players is to be selected from a pool of six: John, Mike, Sarah, Lisa, Tom, and Rachel. The selection criteria are: 1) At least one player must be a female. 2) Mike and Tom cannot be selected together. 3) John must be included in the team. Which of the following combinations meets the criteria?

D. JOHN, TOM, SARAH

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 be selected only if Alice is not selected. Which of the following groups satisfies all the conditions?

D. BOB, CHARLIE, EVA

A class consists of six students: P, Q, R, S, T, and U. The selection criteria are: 1) P cannot be selected if Q is selected. 2) R must be selected if S is selected. 3) T can be selected only if U is not selected. Which of the following combinations is valid?

C. R, S, T

A, B, C, D, and E are five students. A is not the tallest. B is taller than C but shorter than D. E is the shortest. Who is the second tallest?

D. D