Refer to the Figure Below Showing the Miller‒Urey Experiment

Multiple Choice

Refer to the figure below showing the Miller‒Urey experiment. Research conducted later than the Miller‒Urey experiment showed that volcanic activity 4 billion years ago injected other gases, such as SO₂, into Earth's early environment.This information led to the conclusion that

A) the original Miller-Urey experiment did not produce meaningful data.
B) a modified experiment should be performed in which other gases would be added to the initial heated solution.
C) the experiment required a longer running time to see whether the other gases would be produced.
D) the beaker of condensed liquid and compounds should be heated in the presence of the additional gases.
E) the Miller‒Urey experiment did not require modification, since cellular life existed earlier than 4 billion years ago.