I'm not quite sure how to answer this because it is not a question.
The primary advantage of sexual reproduction when compared to asexual reproduction is C. There is greater genetic variety in the offspring.
Asexual reproduction produces offspring that are genetically identical to the parent cells. In contrast, sexual reproduction involves fertilization of sperm and egg, which creates more genetic variation, as do subprocesses within this process like crossing over during prophase.
The correct answer is letter D. The ground or the forest floor has the greatest level of biodiversity in the tropical rainforest. This is where different species thrive and survive with other species because the primary food source are abundant within this level of the rain forest.