Four friends, A, B, C, and D, have different pets: a dog, a cat, a bird, and a fish. A does not have the dog or the bird. B has a cat. C has a fish. Who has the dog?
Four friends - A, B, C, and D - have different pets: a dog, a cat, a bird, and a fish. A does not own a cat. B owns a bird. C does not own a dog. What pet does D own?