According to the passage on entering a railway compartment an overseas visitor is expect

According to the passage, on entering a railway compartment, an overseas visitor is expected to ______ .

A．inquire about the code of behavior. in the train

B．shake hands with all the passengers

C．shake hands with the person he knows

D．behave like an Englishman

请帮忙给出正确答案和分析，谢谢！