If marginal cost is less than average total cost,

A) average total cost is falling.
B) average total cost is constant.
C) average total cost is rising.
D) there is no way to determine if average total cost is falling,constant,or rising.

Average Total Cost

The total cost of production divided by the number of units produced, representing the average cost per unit.

Marginal Cost

The uptick in complete expenditure resulting from the creation of one more unit of a product or service.