If the price of a pizza is $12 then when the price of a cup of coffee falls from $4 to $3: Select one: the opportunity cost of a pizza falls from 4...

If the price of a pizza is $12 then when the price of a cup of coffee falls from $4 to $3:

Select one:

a. the opportunity cost of a pizza falls from 4 cups of coffee to 3 cups of coffee.

b. the opportunity cost of a cup of coffee rises from 3 pizzas to 4 pizzas.

c. the opportunity cost of a cup of coffee falls from 4 pizzas to 3 pizzas.

d. the opportunity cost of a pizza rises from 3 cups of coffee to 4 cups of coffee.