Need some help, I dont understand smh ;-;

Marcy is a very good math student, but she seldom studies for tests. as a result, her grade has dropped this semester. this is an example wasting talent getting distracted allowing others to set goals

Astitch in time saves nine. a penny saved is a penny earned. these sentences similar in meaning opposite in meaning neither the same nor the opposite

Wich of the following is not a receptor pair according to the opponent process theory