The correct answer is methylation.
This process refers to the addition of methyl groups to the DNA molecule, when the activity of such DNA segments is slightly altered. The more we age, the less methylation there is, which is why the genes of the elderly are different from those of young people.
Answer:
The cultural environment.
Explanation:
A cultural environment is a set of beliefs, traditions, rituals, and behaviors that are considered common to all of those who live within a specific population. The way each individual develops influences the cultural environments, resulting in developing philosophies and personalities. The importance of cultural environments is specific to a particular culture, period, and location. Depending on the time period, those values will differ.
I believe it's C. But don't take my word for it, it's just what I think it is but it would be wrong.