Which hypothesis suggests that both polypeptides and RNA arose at the same time?

A) Aleksandr Oparin's coacervate theory
B) Stanley Miller's chemical soup theory
C) Sidney Fox's protein-first hypothesis
D) Alexander Cairns-Smith's simultaneous evolution of polypeptides and RNA hypothesis
E) Darwin's original theory of evolution, as written in Origin of Species

Polypeptides

Chains of amino acids that form the building blocks of proteins.

RNA Hypothesis

The RNA hypothesis, often referred to as the RNA world hypothesis, suggests that ribonucleic acid (RNA) was the first self-replicating molecule and played a pivotal role in the early development of life on Earth.

Aleksandr Oparin

A Soviet biochemist known for his contributions to the theory that life on Earth developed through a process of chemical evolution.