Steve is throwing a pizza party for his friends. He allows them to pick between the following pizza types: pepperoni, cheese, onions and peppers, ham and pineapple and mushroom. Each person can eat as many slices as they like. Steve's friends do not like to answer questions directly, but they do answer truthfully. Steve polls them to find out what type of pizza and how many slices each person wants. Assume that no one will eat more than one type of pizza and apply the rules of logic to discover the answer.