Answer:
I would say that his main achievement was his ability to unite the whole Greece under his reign and authority after battle of Chaeronea.
Explanation:
While he was a child, Philip was sent into Thebes as a part of treaty, which led him to be more and more acquainted with their culture, military tactics, governing system.
Therefore, when he started ruling in Macedonia he tried to use all of these features to strengthen his authority and later to spread it across whole Greece.
As the Cold War heated up in the 1950s, the United States made decisions on foreign policy with the goal of containing communism. To maintain its hegemony in the Western Hemisphere, the U.S. intervened in Guatemala in 1954 and removed its elected president, Jacobo Arbenz Guzman, on the premise that he was soft on communism.
The answer is B-the concept of a unicameral legislature
