It Takes Melissa Eight Hours to Produce a Bushel of Corn

It takes Melissa eight hours to produce a bushel of corn and two hours to wash and polish a car. It takes Greg six hours to produce a bushel of corn and one hour to wash and polish a car. If Melissa and Greg each work 48 hours in one week and produce only the good for which they have the comparative advantage, how much corn is produced and how many cars are washed in total?

A) six bushels of corn and 24 washed cars
B) six bushels of corn and 48 washed cars
C) eight bushels of corn and 24 washed cars
D) eight bushels of corn and 48 washed cars