问题：
[不定项选择题] To be fair, this observation is also frequently made of Canada and Canadians, and should best be considered North American. There are, of course, exceptions. Small-minded officials, rude waiters, and
A、tends to be superficial and artificial
B、is generally well kept up in the United States
C、is always understood properly
D、has something to do with the busy tourist trails
参考答案：
B、is generally well kept up in the United States
● 参考解析
