If Q = K1/2L1/2 the MPK is

Which of the following is true? a. Sellers are willing to supply more of a good or service at every price after costs have increased. b. A fall in the price of a product leads to an increase in the profits earned by sellers

c. A fall in the cost of production leads to a downward movement along the supply curve of a product. d. Sellers are willing to supply more of a good or service at every price after costs have decreased. e. An increase in the price of a product leads to a fall in the profits earned by sellers.

In the long run, the Fed can change the inflation rate but not the unemployment rate

a. True b. False