A.
I say this because there are other ways to make DNA in plant cells like adenine, cytosine, guanine, and thymine so B is out. Though, Mitochondria does break down waste so part of B is right but that would cancel out C. Without Chloroplasts, a plant cannot make food so D is out as well. Hope this helped!
I believe the answer to be developing nations. D. Thank you.
Explanation:
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