In Order to Reduce the Possible Negative Stereotypes About Students

In order to reduce the possible negative stereotypes about students who speak a different dialect,teachers should

A) accept students' dialects as a valid and correct language system,but teach the English used in formal situations as well.
B) expect to find more homonyms in the students' language than usual.
C) focus on teaching formal English to all students.
D) promote Heritage English rather than Formal English for all students.