Which Piece of Evidence Would Strongly Support the RNA-First Hypothesis

Which piece of evidence would strongly support the RNA-first hypothesis?

A) finding a protocell that could carry on metabolism as well as reproduce
B) discovering a way to make RNA more stable than DNA
C) finding a mechanism whereby proteins could assemble DNA out of free nucleotides
D) being able to build microspheres that contain only protein and RNA
E) finding a living organism that uses RNA as its genetic material

Correct Answer:

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