A-A+
The most effective complaint can be made by___
问题详情
The most effective complaint can be made by______ .
A．asking politely to change the item
B．saying firmly that the item is of poor quality
C．showing the faulty item to the manufacturer
D．explaining exactly what is wrong with the item
参考答案
正确答案：D
解析：细节题。第三段第一句后半部“especially when the consumer can demonstrate what is wrong with the item”得知答案。
