The correct answer of this question is option D. Most workers on the Central Pacific leg of the railway were Chinese. An estimate of 10,000 to 15,000 Chinese worked on the first transcontinental railroad. They were not paid properly compared to workers of the European descent.
The answer is C. California had the most electoral votes and so Gore won over California
The House Un American Committee was a Cold War effort to expose Communists at all levels in the U.S. Government, It was led by Joseph McCarthy. The efforts of the committee were later discredited due to the unethical behavior of its chairman Joseph McCarthy.
It grew exponentially in this period because in the aftermath of the second world war, there was a baby boom as a result of numerous young couples created by high amounts of returning soldiers.