From the conditions of frontier life came intellectual traits of profound importance. The work of travelers along each frontier from colonial days onward describe certain common traits The result is that to the frontier the American intellect owes its striking characteristics. in the artistic but powerful to effect great ends; that restless, nervous energy; that dominant individualism, working for good and for evil, and withal that buoyancy and exuberance which comes with freedom
(Frederick Jackson Turner, “The Significance of the Frontier in American History,” The Frontier in American History (New York: Henry Holt and Company, 1920), 37.)
The correct answer is C. You don't have to change the first part of the sentence, only add HAD arrived.
B) What Language a Child First Learns
-All the other answers are traits one is born with
Answer: The correct answer is the word "enthusiastic", it sets the tone for the excerpt because it denotes gratefulness and awe of the action’s women have done and what they have achieved despite the obstacles they had to face. So basically, the author is glad to be able to speak about the topic with another person.
Explanation: