Which of the Following Statements Is (Are)correct? Critics of the Real

Which of the following statements is (are) correct? Critics of the real business cycle model

A) question whether technology has ever been the cause of a recession.
B) do not deny that some technology shocks affect many industries.However,they do not believe that there are enough of these shocks to explain recessions where output falls too as much as 10 percent below potential output.
C) argue that aggregate supply changes drive most business cycles.
D) All of the above
E) None of the above