If Mia Can Either Wash 10 Cars or Wax 2

If Mia can either wash 10 cars or wax 2 cars during a day, and Daniel can either wash 17 cars or wax 2 cars during a day, then according to the law of comparative advantage,

A) Daniel's opportunity cost of waxing a car is less than Mia's.
B) their total output can be expanded if Mia specializes in waxing and Daniel in washing.
C) their total output can be expanded if Mia specializes in washing and Daniel in waxing.
D) it would be impossible for Daniel and Mia to increase their total output through specialization and mutual exchange.