A vending machine has three buttons, labeled A, B, and C. The cost is the same for all three buttons.If you press A, you get a pound of fertilizer. If you press B, you get a pet rat. If you press C, you randomly get either fertilizer or a pet rat. Given a situation where a person wants both fertilizer and a rat, but only has money for one or the other, which button do you think will be used the most, and why?Which one would get pushed least?