I think your missing something that goes with the question?
it is asking to explain one way that scholarly disciples not recorded in history have contributed the perspectives explained by Diamond. (who im presuming is the author)
The answer is B spread it throughout an area
The Industrial Revolution occurred last in Russia.
Answer: c. Russia
Learning Ancient Greek allows one to better understand the mechanics of grammar, gives access and nuance to a wide range of vocabulary in both common English and technical words, such as in the sciences, and allows one to be able to rapidly learn even more languages.