I believe the answer is B. They were no longer able to acquire the necessary characteristics for survival in a changing environment. I think it is B. because trilobites mostly went extinct because of the event that wiped out 95% of Earth's species. So they didn't have the characteristics to survive. Hope I helped!
Explanation:
ln order for photosynthesis to happen, you need six carbon dioxide (co2) molecules, six water molecules (H02), and light energy. photosynthesis one molecule of sugar (c6H1202).
