Which of the following is not a policy instrument of the Fed?

When the marginal cost of a price-taking firm is less than the market price of its product, the firm should:

a. expand output (provided that price is not less than average variable cost). b. reduce output (provided that price is not less than average variable cost). c. maintain output (provided that price is not less than average variable cost). d. charge more than the market price.

The saving schedule would be shifted upward by:

A.  An increase in the value real and financial assets B.  A reduction in real interest rates C.  Expectations of rising prices of products D.  A decrease in taxes