Which One of the Following Is Not True About RNA

Which one of the following is not true about RNA editing?

A) RNA editing occurs mostly in mitochondria and chloroplasts.
B) RNA editing requires guide RNAs that have sequences complementary to the edited mRNA.
C) Deamination of G is a common reaction in RNA editing.
D) Deamination of A is common reaction in RNA editing.
E) RNA editing allows for the synthesis of two different proteins from one gene.