Answer:
consequence, reinforcing stimulus.
Step-by-step explanation:
According to the principles of operant conditioning, consequence is the threat that can be applied to an individual to change a certain set of behavior. It is the process of putting a condition to an individual in order to achieve a desired goal.
Reinforcing stimulus is the process of putting a desirable stimulus to enhance better results. It is the process of strengthening the behavior of an individual by putting a favorable stimulus.
Here, Monica's increase in studying is called the consequence, and the $75 she will eventually receive for 3 "A" grades is the reinforcing stimulus . The increase in her studying is due to her understanding of the consequence of not securing good marks. She also knows that she wouldn't receive any money if she doesn't score 'A'.
While the $75 she will eventually receive if she scores 3 "A" grades is the reinforcing stimulus. It motivates her to work hard.