The rule of MC = MR does not apply to a monopolist

In the figure above, what is the slope of the curve at point A?

A) 0.75 B) -0.75 C) 1.33 D) -1.33 E) zero

Assume the economy is at full employment. Which of the following would you expect if oil prices suddenly decreased?

a. A recession b. A decrease in employment below its full-employment level c. An economic contraction d. A technological breakthrough e. An increase in employment above its full-employment level