From the Material on Black English Vernacular (BEV), One Can

From the material on Black English Vernacular (BEV) , one can infer that

A) in principle, speakers of BEV could be White or Latino as well as Black.
B) BEV delays intellectual development in preschoolers because it is not adequately stimulating to cognitive faculties.
C) for the speaker of BEV to become proficient in standard English, it is necessary to extinguish BEV as a speech pattern.
D) All of these answers are correct.