How Does This Figure Illustrate a Line of Evidence Supporting

Multiple Choice

How does this figure illustrate a line of evidence supporting RNA world?

A) This figure illustrates a cofactor that indicates catalytic and structural functions performed by RNAs.
B) This figure illustrates the removal of a hydroxyl group through a ribonucleotide reductase.
C) This figure shows the catalytic site of a ribosome that is formed entirely from RNA.
D) This figure illustrates one of the many essential parts of RNA present in the prebiotic environment.