The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how the genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Answer:
Prosper means the economies succeeded or did well.
Explanation:
And Their development of advanced concepts, techniques and use in production, investment, finance, economic development, and etc. This helped them with the way they had lived their lives.
Made them unhappy I would think.
I would say B for this question. Hope it helps