As far as the writing technique is concerned, the author mainly resorts to ______.

A．can not speak English
B．are not culturally homogeneous in broad cultural values
C．choose to keep their own culture
D．Both ［B］ and ［C］.

A．there are more than one race
B．one ethnic group dominates over the others
C．billingual education is demanded
D．cultural features should be maintained