What Evidence Suggests That RNAi Plays a Role in Heterochromatization

Multiple Choice

What evidence suggests that RNAi plays a role in heterochromatization?

A) Deletion of RNAi components impair both methylation of histone H3K9 and heterochromatization.
B) Addition of RNAi components impair both methylation of histone H3K9 and heterochromatization.
C) Deletion of RNAi components enhances both methylation of histone H3K9 and heterochromatization.
D) Mutation of RNAi components denatures both methylation of histone H3K9 and heterochromatization.
E) None of these are correct.