Which Statement Is NOT Evidence Supporting the Idea That Ribosomes

Multiple Choice

Which statement is NOT evidence supporting the idea that ribosomes are ribozymes?

A) rRNAs are highly conserved.
B) Experiments show that mutations in proteins cause resistance to antibiotics that inhibit protein synthesis.
C) Extraction of ribosomal proteins does not greatly affect peptidyltransferase activity.
D) Ribosomal RNA forms the structural core of the ribosome.
E) None of the statements is evidence supporting the idea.