单选题 Which of the following statements best describes automatic stabilizers? Although no legislative action has been taken, automatic stabilizers are programs that apply:

A. restraint during a recession and stimulus during an economic boom.
B. restraint during a recession but do not apply stimulus during an economic boom.
C. stimulus during a recession and restraint during an economic boom.

【正确答案】 C

【答案解析】Automatic stabilizers tend to increase deficits during recessions, which stimulates demand during the contraction phase of the business cycle, and increase surpluses or reduce deficits during economic expansions, to reduce aggregate demand during expansions.