The customers objected unfairly in the course of shopping.A. to be treatedB. their being t

问题补充：

The customers objected unfairly in the course of shopping.

A. to be treated

B. their being treated

C. to being treated

D. having been treated

答案：

A. to be treated

B. their being treated

(答案→)C. to being treated

D. having been treated

解析：考察object的用法，object to doing sth意为反对……，

句意为，顾客反对在购物的过程中被不公平对待 。