Which activity is an example of linguistic imperialism?

A. Attending the natives' religious events and festivals, which are
performed in the native language

B. Waging violent attacks on natives who do not follow the
colonizers' rules

C. Labeling different groups in the native society and then separating
them from one another geographically

D. Forcing the natives to change their language, which results in
them losing connection to their traditions and beliefs