Scientists Once Assumed That the Earliest Protocells Would Have Been

Scientists once assumed that the earliest protocells would have been autotrophs.This concept appears to be

A) correct,since heterotrophs would depend upon eating autotrophs.
B) correct,since glycolysis and fermentation only occur after oxygen is present from photosynthesis.
C) incorrect,since the primordial soup likely contained many preformed food molecules suitable for heterotrophic metabolism.
D) incorrect,since glycolysis and fermentation require complex enzymes for catalytic reactions.