Which of the following is a true statement regarding the process of RNA editing?

A. RNA editing changes the sequence of the mRNA message thereby permitting for enhance in protein diversity without increasing the size of the genome.

B. RNA editing enzymes can alter recognize of each of the four RNA nucleotides (adenine, guanine, cytosine and uracil).

C. RNA editing enzymes can change the sequence of DNA thereby permanently incorporating sequence changes into the genome.

D. RNA editing enzymes will change the sequence of the intron-exon junction thereby resulting in the alternate use of exons.