I bought ________ exercise books with ________ money.

A．a few, a few

B．a few, a little

C．a little， a few

D．a little, a little

国内酒店基本采用内扣毛利率定价法给菜肴定价，例如一份剁椒鱼头，新鲜鱼头重1.25千克，每千克单价12元，配剁椒成本3元，调料1元，按照40％的内扣毛利率，核算售价为（）元。

A.47.5

B.31.7

C.30.4

D.26.6