Ginny and Lucia 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. Ginny takes 3 hours to brew a gallon of root beer and 2 hours to make a pizza. Lucia takes 7 hours to brew a gallon of root beer and 5 hours to make a pizza.1. Cho's opportunity cost of brewing a gallon of root beer is:a. 2/3 pizza; b. 5/7 pizza; c. 1 1/2 pizzas; d. 1 2/5 pizzas, 2. and Ginny's opportunity cost of brewing a gallon of root beer is: a. 2/3 pizza; b. 5/7 pizza; c. 1 1/2 pizzas; d. 1 2/5 pizzas.