I would say that the answer is D.
No. Medical progress is allowing us to progress and evolve in different ways. That is the only difference. Having medical progress and good medical care allows us to pursue different types of activites we wouldn't be able to pursue otherwise. This at the same time brings a different type of evolution.
If the epimers differ in con²gura±on around one<span> carbon or more than one carbon</span>
During photosynthesis, plants take in light energy from the Sun, carbon dioxide from the air, and water through their roots. Oxygen is a product of photosynthesis.