《安全生产法》要求建立的核心安全制度是（）。

A.安全检查制度

B.安全生产责任制度

C.安全奖金制度

Which of the following is most likely to occur in the short run if there is an unanticipated decrease in aggregate demand due to a reduction in business and consumer optimism （）

A. An increase in the rate of unemployment.

B. An increase in real GDP.

C. A higher rate of inflation.