C or B I would go with B but if not then it's C
Answer:
the policy of keeping communism from spreading beyond the countries already under its influence. The policy applied to a world divided by the Cold War, a struggle between the United States and the Soviet Union.
The green revolution is when farmers and scientists developed new methods and techniques to make plants grow faster. They also discovered new strains and compounds to replace plants that take longer to grow, with faster and more effective plants. Because of the green revolution, plants may grow at a faster rate with less water or sunlight given to them. It was the scientific improvement to earths natural way of providing resources.
Because he valued education and classical learning
John Quincy Adams was elected
