Concept:Scientific progress is often accelerated when researchers share their findings.Explanation:The paragraph describes Darwin’s voyage and experiments. It states Darwin “would have been enlightened by Mendel’s experiments” if they had known of each other’s work. This directly shows that not knowing each other’s work was a missed opportunity. Therefore, sharing work among scientists can be beneficial. Option A is wrong because Darwin’s hypothesis came after experiments. Option C is wrong – no special apparatus is mentioned. Option D is wrong – the paragraph only says Darwin started the voyage at age 22, not that all scientists are young.Answer:Option B – Sharing of work among scientists can be beneficial.