Answer:
- Simulation of early Earth conditions and long-term study of the resulting molecules.
Explanation:
The most likely key for collecting evidence that will characterize the 'RNA world hypothesis' as valid would be 'simulation of early Earth conditions and long-term study of the resulting molecules.' This will help in replicating the early Earth conditions and this will help in taking the research forward in the right direction and gather sufficient authentic and reliable data regarding the origin of the molecules on the Earth. This data further can be analyzed to ensure if it supports and substantiates the claim. Thus, option B is the correct answer.
