Megan and Susan are roommates. They spend most of their time studying (of course), but they leave some time for their favorite activities: making pizza and brewing root beer. Megan takes 3 hours to brew a gallon of root beer and 2 hours to make a pizza. Susan takes 7 hours to brew a gallon of root beer and 5 hours to make a pizza.
Megan's opportunity cost of making a pizza is ??
a. 2/3 gallon
b. 5/7 gallon
c. 1 1/2 gallons
d. 1 2/5 gallons
