Economists Blame the Long Lines at Gasoline Stations in the U.S.in

Economists blame the long lines at gasoline stations in the U.S.in the 1970s on

A) U.S.government regulations pertaining to the price of gasoline.
B) the Organization of Petroleum Exporting Countries (OPEC) .
C) major oil companies operating in the U.S.
D) consumers who bought gasoline frequently,even when their cars' gasoline tanks were nearly full.