If the multiplier in the economy is 3, the marginal propensity to save (MPS) must be

All of the following statements are true of the minimum efficient scale except one. Which one?

A) Any increase in the scale of operation will encounter either constant returns to scale or diseconomies of scale. B) All possible economies of scale have been exhausted. C) The short-run average total cost curve's minimum point is equal to the long-run average cost curve's minimum point. D) An increase in the output level will increase profit.

An example of moral hazard is

a. workers shirking when the boss is not looking b. health care insured workers dieting and exercising c. drivers of safer cars turning their phones off before driving d. borrowers investing their loan proceeds exactly as the bank requires