Which of the following factors leads to the globalization of the use of language

A．Non-native speakers are preferred to teach English in non-English-speaking countries.
B．Many countries prefer to teach their mother tongues instead of English.
C．The version of English taught by non-native teachers contains some features of their own language.
D．Many more local English publications will appear.

A．it can be more easily localized and understood
B．it can be easily shortened to achieve a casual style
C．it is a language with more casual styles and incomplete sentences
D．it is more advanced in spreading science and technology