Coming as a guest into an American home, the European visitor finds no visible landmarks.
A、... the European visitor is eager to find out about the code of behavior.
B、... the European visitor can't find clues as to how to behave appropriately.
C、... the European visitor gets confused about American family relationships.
D、... the European visitor is greatly interested in the unspoken rules for a guest.
【正确答案】：B
