When Stimulating Formation of Heterochromatin During RNA Silencing in Plants

When stimulating formation of heterochromatin during RNA silencing in plants, the key changes that would be observed include Check all that apply

A) tightening of chromatin via methylated histones.
B) reduction in expression of methyl groups.
C) increasing histone methylation.
D) restricted access to histones via chromatin methylation.
E) the RNAi pathway enhances methylation.