Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.

A.in a locked cabinet in the machinery space

B.in an unlocked cabine in the machinery space

C.in a separate and accessible location

D.at a fire hydrant location

下列哪一位经济学家是货币主义学派的代表人物？（）

A.凯恩斯

B.李嘉图

C.帕累托

D.弗里德曼