Which one of the following best illustrates a primary reinforcer? a. money b. the sight of a chocolate meringue pie c. a warm smile from your boss d. water when you're thirsty quest 15.

Option-(B,D):

Water when you're thirsty, and the sight of a chocolate meringue pie.

Explanation:

The primary reinforcement includes the instinctive sense of a human being, which includes resources for feeding itself, along with having a place to sleep and the pleasures are the principles. So, it includes the thirst, requirement of shelters, and the different pleasures to fulfill are termed as the primary reinforcers.

Secondary reinforcements are due to the conditional terms that are set for the living being. As they are not the first priority to survive for the human being. For example, the money, school grades, and the warm smile from your boss.

none, its a machine

the answer for apex is the lowest