_____ are payments from governments to producers or consumers when they engage in a particular economic activity

In the period 1960–95, the cycles of upturns and downturns in the economy (booms and recessions)

(a) were eliminated as knowledge of how the economy operated grew. (b) continued to occur, although not nearly as severely as prior to World War II. (c) grew even worse than prior to World War II. (d) were equally as bad as the period prior to World War II.

In _____ the OPEC national quadrupled the price of oil.

Fill in the blank(s) with the appropriate word(s).