Suppose that the given statements are true. Find the other true statements. (a) Given: If our instructor hates to fly, then the wall has been painted. If the wall has been painted, then Ivanna is calling a time-out. Which statement must also be true? (choose one) (b) Given: If the mouse escaped from the cat, then Diane is a doctor. The mouse escaped from the cat. Which statement must also be true? (choose one) (c) Given: If I am in my first period class, then Carmen heard the radio. Which statement must also be true? (choose one)