Answer:
The opponent process theory suggests that the way humans perceive colors is controlled by three opposing systems. We need four unique colors to characterize perception of color: blue, yellow, red, and green. According to this theory, there are three opposing channels in our vision.
Explanation:
The Vietnam War. The USA became involved in Vietnam because it feared the spread of communism. The USA were unable to defeat the Vietcong and were met with growing opposition to the war back home.
The main idea of Abraham Lincoln's Second Inaugural Address is that both the Union and the Confederacy were responsible for the Civil War. The second inaugural address was held at Washington D.C in 1865. From the excerpts, both the Union and Confederacy did not initially want to go to war but wanted to be victorious.
So the answer is B. Hope this helped!
Class conflict started the revolution
