The answer is B. The Bill of Rights guarantees any American citizen the right to a fair trial if arrested.
The correct answer should be B. remain neutral and not take sides in the war.
He even led his campaign with the words that the country would not join the war, however, it became inevitable at one point and the country had to join.
Ultimately the deepest causes of Soviet collapse were the decline of communist ideology and the failure of the Soviet economy. This would have happened even without Gorbachev. In the early Cold War, communism and the Soviet Union had a good deal of soft power.