[单选题]单选题"《安全生产法》规定( )依照行政监察法的规定,对负有安全生产监督管理职责的部门及其工作人员履行安全生产监督管理职责实施监察。
A.监察机关
B.承包单位
C.生产经营单位

Do you remember all those years when scientists argued that smoking would kill us but the doubters insisted that we didn’t know for sure That the evidence was inconclusive, the science uncertain That the antismoking lobby was out to destroy our way of life and the government should stay out of the way Lots of Americans bought that nonsense, and over three decades, some 10 million smokers went to caily graves.
There are upsetting parallels today, as scientists in one wave after another try to awaken us to the growing threat of global warming. The latest was a panel from the National Academy of Sciences, enlisted by the White House, to tell us that the Earth’s atmosphere is definitely warming and that the problem is largely man-made, The clear message is that we should get moving to protect ourselves. The president of the Nation- al Academy, Bruce Alberts, added this key point in the preface to the panel’s report "Science never has all the answers but
A. a protector.
B. a judge,
C. a critic.
D. a guide,