The correct option is D.
Marginal cost refers to the amount of money it cost a company to produce one more of a particular product while the marginal benefit refers to the benefit that is obtained as a result of producing that one extra product. Profit is maximized when the marginal cost equals the marginal benefits.
Language is to speaking that sounds about right
A alliteration is 3 words that start with the name letter in a row and in a sentence.
Example: Billy likes eating apples, apricots, aluminum and oranges.
D tone is the answer hope it helps