The largest continent is Asia. It covers 29% of earth's land area. in 2016 alone Asia had 4.436 billion people in it. Asia is 17.21 million mi^2.
Answer: Use this link to find out the answer to your question - https://populationeducation.org/stage-1-demographic-transition-model/ (If you can't click it then just copy-paste it in a new tab)
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I think is alternative a because that includes the earth