He kept thinking of the question whether it was _____ for his father to change the habit of a life time in

such a short time.   [ ]

A. possibly        

B. probable            

C. likely                

D. possible

司马迁在《史记·货殖列传》中说：“待农而食之，虞（指开发山林川泽等自然资源）而出之，工而成之，商而通之。”并引《周书》的话说：“农不出则乏其食，工不出则乏其事，商不出则三宝绝，虞不出则财匮少，财匮少而山泽不辟矣。”以上材料表明司马迁的经济主张是[ ]

A．肯定人们的求利活动

B．对农工商业一视同仁

C．以农为本

D．重农轻商