Which of the Following Provides Some Evidence That RNA Probably

Multiple Choice

Which of the following provides some evidence that RNA probably evolved before DNA?

A) RNA polymerase uses DNA as a template.
B) RNA polymerase makes a single-stranded molecule.
C) RNA polymerase does not require localized unwinding of the DNA.
D) DNA polymerase uses primer, usually made of RNA.
E) DNA polymerase has proofreading function.