A or D I think, but I really think it's A.
Answer:
Being a active reader means you'll have to pay attention to the reader who's reading it :3
Explanation:
:3
Darwin's argument tells us that species develop their traits through natural selection due to competition, survival and reproduction. Diversification of species is an important part to make his argument valid because diversification suggest extinction of specie if it doesn't survive.
Skinny and they don’t eat much so they don’t get bloated
