It can be inferred that Americans being approached too closely by Middle Easterners would most probably______.

A．it is dangerous to ignore their foreign friends
B．it is important to maintain their leading role in world affairs
C．it is necessary to use several languages in public places
D．it is time to get acquainted with other cultures

A．are isolated by the local people
B．are not well informed due to the language barrier
C．tend to get along well with the natives
D．need interpreters in hotels and restaurants