From the passage we can tell that many Americans were fearful because they thought the Chinese were

A．adequate housing.
B．national acceptance.
C．equal education.
D．unfair treatment.

A．it tells people there will be an earthquake in the near future.
B．it changes the official earthquake prediction for the area.
C．it makes it possible for scientists to calculate the magnitude.
D．it proves scientists' long-time suspicion about hidden faults.