Consider the market for running shoes. draw a firm's average total cost curve with no advertising. label it atc0. draw the firm's average total cost curve with advertising. label it atc1. if the firm successfully advertises, the quantity produced increases such that _______.
a. total cost increases and average total cost increases
b. total cost increases and average total cost decreases
c. total fixed cost decreases
d. total cost decreases and average total cost increases