I believe the correct answer is C, asserting that scientists should rely on experimentation and observation. He didn't prove that Earth revolved around the sun, Galileo and Copernicus did that. He didn't do anything with human anatomy that I know of, and Newton used math to prove ideas.
Answer:
They had a language. And Columbus had people with him, who had been experts in communication, and quickly established a basic communication which was constantly expanded. Most of the people he encountered on his voyages were Tainos/Arawaks, who were using one language, which was even phonetic and had a quite logic grammar. With the other tribes like Caribs and Siboneys he had none or only hostile encounters. He took three Arawaks back to Spain from his first voyage. They were very good navigators, and had already learned the Spanish language.
Answer: Your Answer is A. Georgia
Explanation: Georgia was already a state and was not considered unexplored territory during the the Lewis and Clark expedition.