Use the Following to Answer Question(s): a Firm's Cost Curves

Multiple Choice

Use the following to answer question(s) : A Firm's Cost Curves

-(Exhibit: A Firm's Cost Curves) The vertical distance between curves X and W decreases as output increases.This results from:

A) rising marginal cost.
B) rising total cost.
C) rising total variable cost.
D) declining average fixed cost.