Refer to Figure 2-6. Consider the production possibilities frontier for an economy that produces only blenders and microwaves. The opportunity cost of each blender is Select one: a. the reciprocal of the slope of the production possibilities frontier, or of a microwave. b. the slope of the production possibilities frontier, or microwaves. c. the slope of the production possibilities frontier, or of a microwave. d. the reciprocal of the slope of the production possibilities frontier, or microwaves