C...the key is that they are photosynthetic...so they produce oxygen (like plants)!
TATCGCTATTAT here is the answer give me a brainless answer
C "fatty acids" is your answer
The best and most correct answer among the choices provided by the question is <span>b. oil</span> <span>.
</span>A thick, black liquid formed from the buried remains of microscopic marine organisms is oil .
<span>
Hope my answer would be a great help for you. </span>
If you have more questions feel free to ask here at Brainly.
