Your friend tells you that our society has sick values because teachers make significantly less than sports stars like Alex Rodriguez. Applying the economic way of thinking, you argue that

a. Sports stars have more expensive tastes than teachers and must make more to live comfortably.

b. Comparing the salary of a teacher against the salary of Alex Rodriguez confuses total value with marginal value.

c. This is because there is a larger demand for teachers than for sports stars like Alex Rodriguez.

d. This is because there is a smaller supply of teachers than for sports stars like Alex Rodriguez.