Question

Based on Passage 2, which choice best describes the relationship between PAHs and RNA?

• A. PAHs can be combined to form RNA molecules in the presence of water.
• B. PAHs can provide support for the synthesis of RNA molecules.
• C. PAHs are a necessary precursor for the synthesis of RNA molecules.
• D. PAHs make possible the synthesis of RNA molecules even in nebulae in deep space.

Answer 1

Answer: (B)

PAHs can provide support for the synthesis of RNA molecules.

As mentioned in the passage, "A number of studies showed that PAHs present in nebulae and star systems are made up of rings of carbon and hydrogen and have structures that help RNA strands self-assemble in the oceans of planets (or, synthesis of RNA)". Hence, Option A is correct.

The rest of the options are neither mentioned nor implied by the passage, hence they're incorrect.