Question: Bobby had a new toy. It had lots of buttons on it. One of the buttons had a picture of a cow on it and every time Bobby pushed that button the toy would make a mooing noise. That's because

  Options: 
 A. a circuit was opened up when he pressed the button
 B. His new toy was possessed
 C. a cow was inside of the toy
 D. a circuit was made intact when the button was pressed
Answer: D