Answer:
OD) a-total product, b-marginal product, c-law of diminishing returns
Step-by-step explanation:
A. Everything that is produced in a given amount of time with a given amount
of inputthe change in output because of a change in input
B. As more of one input is added to a fixed supply of everything else, productivity increases up to a point;
C. however, at some point it will diminish and ultimately may reach a negative amount.