Ecosystem diversity, species diversity, genetic diversity all intertwine to create biodiversity. Thus, the correct option is A.
Biodiversity is defined as a community of all the living organisms on the earth and the diversity among them from all the ecosystems. Biodiversity is thus the changes between the species, within the species, and between the ecosystem.
Genetic diversity is basically the variety of species expressed at the genetic level by each individual in a species.
Species diversity observed within a community. It stands for the number and distribution of species.
Ecological diversity defines the diversity observed among the ecosystems in a particular region.
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