Average total cost ($ per sandwich) Output (sandwiches per hour) 1 2 3 17.00 10.00 8.00 8.00 4 8.80 5 6 10.00 The table above shows output and costs of Evan's Subs, a typical perfectly competitive firm in a local market for sandwiches. Evan's fixed cost is $9 per hour. The current market price of a sandwich is $6. What is Evan's maximum short-run economic profit? Select one: O a. $6 per hour b. zero O c. $1 per hour O d. -$6 per hour 3 arch B: ? A D