There Have Been Experiments Performed That Simulate Early Earth Conditions

There have been experiments performed that simulate early Earth conditions. These experiments most likely demonstrated that

A) DNA forms readily and reproduces itself.
B) many of the lipids, carbohydrates, proteins, and nucleotides required for life can form under abiotic conditions.
C) complete, functioning prokaryotic cells are formed after approximately three months.
D) a lipid-protein film will eventually be formed by thermal convection.
E) oxygen was present in large amounts.