A、Offering something other banks don’t have. B、Giving free gifts to its customers. C、Showing detailed description of the service

Do you know how to advertise for a bank? Well, there are several things to think about for a bank advertisement. The first problem is to decide who should be our audience. Should our advertisement be aimed at adults with full employment only? Or should it also appeal to students, housewives, retired workers, or even children? It is a good idea to address the largest possible audience. The next question is how to attract people of different social groups to our bank. The usual tip is to offer free gifts, for example, portable radios or T-shirts for the young and gold pens for business executives. That always works. But what do we give to our best customers? That’s another question. What about leather diaries, for example? Banks are very competitive. We have to think of something new to offer our customers. That’s the third problem. Ours is one of the first banks to have drive in service and to open on Saturdays, but now many banks do so. Most banks also offer a variety of checking and saving accounts and a full range of investment plans to suit the needs of their customers, as well as the 24-hour ATM banking which makes it much faster and easier for customers to withdraw cash or do other things. To attract more customers to our bank, it is essential that we have something that no other bank offers.
16. Which group of people should a bank advertisement try to impress?
17. What is crucial to attract more customers for a bank?
18. What can be implied from the passage?