Al's donuts produces about 600 dozen doughnuts daily. if flour prices increase 20 percent
a. marginal cost, average total cost, the average variable cost, and average fixed cost will shift up.
b. only marginal cost and the average total cost will shift up.
c. only marginal costs will shift up.
d. marginal cost, the average variable cost, and the average total cost will shift up.

(D) marginal cost, the average variable cost, and the average total cost will shift up.

Explanation:

Given the nature of business of AI's Donuts, flour prices is part of the variable cost of the business as it will change will any change in the output of the firm.

An increase in flour prices, a variable cost, will have the following effect on the following costs.

Therefore, option (D) is correct as marginal cost, the average variable cost, and the average total cost will shift up.

the answer is true.  i do believe this is the answer because of the amount of wrecks people get into each year.  if you double this with avoiding those so said wrecks, that would make you a "skilled" driver.