Answer:
i think ti would be D. sorry if it's wrong.
Explanation:
<span>The cytoplasm of the cell.</span>
I believe the answer is: Different scientists use different data for investigation.
I say that because different scientists have different equipment, ideas, and have different methods. I hope I was right and i hope it helped and i wasn't to late to answer this question.
The answer is surely D cuz I've done this question in a test before. Hoped I helped ;)
