Five animals are in a race: a dog, a cat, a rabbit, a turtle, and a horse. The horse finishes before the rabbit but after the dog. The cat finishes last. Which animal finishes first?

A. DOG

In a group of five friends: Alice, Bob, Charlie, David, and Eva, the selection criteria are as follows: 1) Only those who have a pet can be selected. 2) Bob and David have pets. 3) Charlie does not have a pet. 4) Alice has a pet, but Eva does not. Who can be selected based on these conditions?

C. ALICE, BOB, AND DAVID

In a puzzle involving six animals: Lion, Tiger, Bear, Elephant, Giraffe, and Zebra, the selection rules are: 1) Only mammals can be selected. 2) The Lion and Tiger must be included together or not at all. 3) The Giraffe cannot be selected if the Bear is selected. Which animals can be selected?

B. LION, TIGER, ELEPHANT

A group of students: Alex, Ben, Clara, Diana, and Ethan are to be selected based on the following conditions: 1) At least two students must be selected. 2) Alex and Ben cannot be selected together. 3) Clara must be included if Diana is included. Which of the following selections is valid?

A. ALEX, CLARA, ETHAN

From the following items: X, Y, Z, A, and B, the selection rules are: 1) X and Y cannot be selected together. 2) If A is selected, then B must also be selected. 3) Z can be selected only if Y is not selected. Which of the following selections is valid?

C. X, Z