Read the following short paragraphs and determine what type(s) o

Read the following short paragraphs and determine what type(s) of support is/are used in each to back up the conclusion of the paragraph. Are the support and the conclusion logically linked? If not, please make appropriate changes.
When stores compete for customers, they try to offer special deals and services to look more attractive than the competition, and advertise heavily to draw new customers in and old customers back. Then the other stores respond with special deals and advertisements. Customers are drawn from store to store and then back again: they believe that they can get the best deal by “shopping around.” It could be just the same with competing schools. Each school might advertise and offer special deals, and other schools would respond. Parents would “shop around” just as grocery shoppers or department store customers do now.
【正确答案】：Analogy