[单项选择]

If you ever have a chance to go to Finland (芬兰), you’ll probably be surprised to find how "foolish" the Finnish people are. You can go anywhere for one dollar, tell the driver to drop you at any place, say that you have some business to attend to, and then stalk off without paying your fare or give any demonstration of your good faith. And the driver will not show the least sign of anxiety. Hotel guests have their meals free, so they naturally go to the free dining rooms to have their meals, and the most they would do to show their good faith is to wave their registration card to the waiter. With such a loose check, you can easily use any old registration card to take a couple of friends to wine and dine free of charge. With so many loopholes (漏洞) in everyday life, surely Finland must be heaven to those who love to take "petty advantages". As tile Finns always act on good faith and always adopt an attitude of "which is which" and "
A. serve their guests free of charge
B. also serve the people who don't live in the hotel free of charge
C. check the guests' registration card carefully
D. are easily cheated by people