Answer: Change there to their.
Sym means
"Together" or "with"
Sympathize: is too share an agreement or feeling with someone
Species Diversity
-All the other answer choices are defined for a different purpose. Although it might be too obvious that species diversity is the answer because the word "species" is mentioned in the question, it's actually the right answer.
Let me know if I'm wrong or not,
Hope this Helps!
I think the answer is individual paragraphs because you break it up so after the whole essay you move to paragraphs than sentences then words then punctuation so that its easier to find errors.