Which Present-Day Observable Piece of Evidence Supports the "RNA World

Multiple Choice

Which present-day observable piece of evidence supports the "RNA world" hypothesis?

A) RNA molecules participate in biologically significant reactions.
B) RNA can serve as an information-carrying molecule.
C) RNA nucleotides catalyze peptide bond formation.
D) RNA molecules participate in biologically significant reactions, and RNA nucleotides catalyze peptide bond formation.
E) RNA molecules participate in biologically significant reactions, RNA can serve as an information-carrying molecule, and RNA nucleotides catalyze peptide bond formation.