[单项选择]

When a consumer finds that an item she or he bought is broken or in some other way does not reach the standard of the manufacturer’s claim for it, the first step is to present the warranty, or any other records which might help, at the store of purchase. In most cases, this action will produce results. However, if it does not, there are various means the consumers may use to gain satisfaction. A simple and common method used by many consumers is to complain directly to the store manager. In general, the "higher up" the consumer takes his or her complaint, the faster he or she can expect it to be tackled. In such a case, it is usually settled in the consumer’s favor, assuming he or she has a just claim. Consumers should complain in person whenever possible, but if they can not get to the place of purchase, it is acceptable to phone or write the complaint in a letter. Complaining is usually most effective when it is done politely but firmly, and especially whe
A. showing the fault item to the manager.
B. explaining exactly what is wrong with the item.
C. saying firmly that the item is of poor quality.
D. asking politely to change the item.