When Aishe's Bar-B-Que produces 10 pork sandwiches, the total cost is $5. When 11 pork sandwiches are produced, the total cost rises to $6. From this we know that the marginal cost of the eleventh pork sandwich:
A.
is equal to the average cost of 11 pork sandwiches.
B.
is greater than the average cost of 11 pork sandwiches.
C.
is less than the average cost of 11 pork sandwiches.
D.
can't be calculated without more information.