I believe the answer to this is D.
Answer:
Why = So that everyone can communicate with each other clearly. Literature breaks all the language barriers that could prevent a masterpiece (which is why many foreign inventors or prodigies abroad had vigorous English courses)
How = School, internet, books, even just speaking in general can help
The event now known as “the voyage of the Beagle” comprises Charles Darwin’s circumnavigation as ship’s naturalist on the second of three surveying voyages by H.M.S. Beagle<span>; the writings published as his first book, the </span>Journal of Researches<span>; and the genesis of his theory of evolution by natural selection. Writing between regimes of world-knowledge, Darwin mediates scientific observation through the language of aesthetics, and seeks to understand the convergence of disparate scales of geological and human history.</span>
Hello
its a realist auther
have a nice day
If the "books" wasn't a plural, it would be "his" but since it isn't singular, it would be "their"