Which of the following, if found to be true, would negate the main message of the passage?
Explanation:
As per the passage, ecological impact has an effect on human adaptation. Thus option 1 can be negated. The passage mostly talks about the high impact of epigenetic inheritance on evolution. Thus option 2 is also incorrect. As per the last sentence of the second paragraph, only natural selection does not influence evolution. Since we have to choose an answer that negates the main message of the passage, retain option 3. Socio-cultural markers are only part of the evolutionary process and not the only influence. Thus option 4 is also incorrect and can be negated. Hence, the correct answer is option 3.