Your answer is going to be B
Answer:
Explanation:
The United States felt that they had been betrayed by the Soviet Union when the Soviet decided to be self-preserving instead of acting like the ally they were supposed to be according to the idea within the Yalta agreement. Beyond the Yalta agreement turmoil, the United States found evidence that they Soviet Union had been spying on them during the time they were supposed to have been allies. In the end, both side lost trust in each other and became enemies.
