In the competition to be held, a gold medal, together with a certain sum of money, _____ the champion.

will be given to who will win               B.  will be given to whoever will become

has been given to whoever wins             D.  was given to anyone who became 

从买方的角度来看，房地产价格是基于社会上的“生产费用”，类似于( )，具体来说，是买方愿意支付的最高价格，不能高于所预计的重新开发建设该房地产所需花费的代价，如果高于该代价，还不如自己开发建设。

A．替代原理
B．生产费用价值论
C．预期收益原理
D．价格构成原理