National Public Radio (NPR) often holds fund drives to raise money for their radio stations. They frequently offer "prizes" for people who donate a certain amount of money. For example, they might offer a CD for those who donate at least $50 to the station. It's not clear whether this actually increases donations. What can we say about this situation?The money functions as a reinforcer for getting a CD.The CD's function as a reinforcer for donating money.The money functions as a reward for getting a CD.The CD's function as a reward for donating money.