If a deacetylase inhibitor were injected into a mouse brain, which of the following would you expect to occur?

A) A general increase in gene expression would occur.
B) A general decrease in gene expression would occur.
C) A general increase or decrease in gene expression, depending on the gene, would occur.
D) Acetyl groups would be removed from histones.
E) Methyl groups would be removed from the DNA.