基金管理人应当按照（）的约定，向投资人收取销售费用
A.基金销售协议
B.理财服务协议
C.基金合同
D.基金资产托管协议
参考答案：C
Seeing that the old lady had no chair ___, the boy offered her his own.
A, to sit B to be seated C. to seat herself D. to sit on
