The gradual change in an organism over the period of time to change the position is called evolution. Evolution is the population phenomenon.
According to the question, the correct option is A.
Red pandas are endangered species in the past era but in recent times they have seen the rise in this population due to have encountered new environmental challenges presented by the increase in deforested land, and this has selected for different adaptations over time.
The amount of light receives by each plant increases the food production  which helps them to have enough food for survival and had the same likelihood to survive and reproduce as their peers.
Hence, the correct option is A that is Independent=Generation and Dependent=Nucleotide Diversity
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