What Are CrRNA and TaRNA, and What Is Their Role

Multiple Choice

What are crRNA and taRNA, and what is their role in riboswitches?

A) newly described small RNAs, part of the mRNA processing multiprotein RISC
B) previously unknown ribosomal RNA molecules that, when paired, release the RBS for translation
C) small RNA molecules that can control the translation of an mRNA of interest
D) all of the above
E) none of the above