The wrench factory is producing 1000 wrenches with an average total cost of $4 and a marginal cost of $5. Which of the following is true? Question 14Select one: a. If production increases, we would expect average total cost to increase b. If production increases, we would expect average total cost to stay the same c. If production increases, we would expect average total cost to decrease d. If production increases, we would expect marginal cost to decrease