A c and d are the correct answers
Greece was a catalyst to Truman philosophy because the country stopped receiving financial aid form Britain. He feared that without British help, they could accept communism and help from SSSR and therefore could lead other countries from Europe to follow its example. He decided that the country has to get financial help from the USA and the rest is history.
Answer:
To colonize is to settle in, and take control of, land outside your own borders. There are many examples through history of powerful countries that colonized various regions of the world in order to gain natural resources or to obtain more land for their citizens to live in.