The main points of the paragraph are: 1. As compared to physicists, biologists are more conservative when it comes to the subject of preprints. 2. Preprints allow faster dissemination of knowledge. A: Misses out the comparison between biologists and physicists. B: Captures both the points appropriately and is the answer. C: Also misses out the comparison between biologists and physicists. D: Factually incorrect, physicists and not biologists are open to the idea of preprints.