In a group of five friends: Alice, Bob, Charlie, David, and Eva, the following conditions are given: 1) Alice is not friends with Bob. 2) Charlie is friends with both David and Eva. 3) Bob is friends with Eva but not with David. Who can be selected as friends of Charlie?
A team of four players: X, Y, Z, and W must be selected based on these criteria: 1) X cannot play if Y is in the team. 2) Z must play if W is selected. 3) Y can play only if Z is also in the team. Which combination of players can be selected?