The marginal product of an input is A) total product divided by the a

The marginal product of an input is

A) total product divided by the amount of the input used to produce this amount of output.
B) the addition to total output that adds nothing to total revenue.
C) the addition to total output that adds nothing to profit.
D) the addition to total output due to the addition of one unit of all other inputs.
E) the addition to total output due to the addition of the last unit of an input, holding all other inputs constant.

ANSWER

E