C) The protection of free speech, is the correct answer.
Within the US, the Cold War was a state political and military tension after WWII, based on the threat of nuclear war, so D is not the answer. As well, McCarthyism was a product of the cold war and was characterized by investigating citizens on the charges of treason, so B is not the answer either. The arms race is another characteristic of the Cold War, due to the military tension of the cold war, therefore A is not the answer either. That leaves C as the correct answer, which makes sense considering the prevalence of McCarthyism during the era.
Answer:
C
Explanation:
You are not letting others know about the benefits of recycling you are only acting on your own
<em>Earth's rotation is the rotation of Planet Earth around its own axis. Earth rotates eastward, in prograde motion. ... The South Pole is the other point where Earth's axis of rotation intersects its surface, in Antarctica.</em>
Because it had so many cultures from all around the world, migrating into the US
C. Lumber. All of the above are non-renewable and take thousands of years to farm, Also lumber is very inexpensive because people can harvest lumber from forests.