Developed by the administration of Harry Truman in the late 1940s, the correct answer is the policy of containment.
Containment refers to the US's policy, developed by legendary diplomat George Kennan, where the US would help any free nation threatened by communism by stopping the spread of communism.
The formation of NATO and the Warsaw Pact were similar in that they ("<span>B) called for collective security against outside threats," since this was during the Cold War, with NATO being an alliance of western, mostly capitalist states, and the Warsaw Pact representing the Soviet Sphere in the East. </span>
The answer is <span>Investors purchased the stocks with little cash down; if the price dropped the investor had to repay the loan.
Investors tend to buy the stock on margin if they do not possess enough cash to purchase the full stock, which makes them forced to fill in the remaining amount by borrowing it from brokers or bank. If the stock ended up going down during the process, the investors will ended up destroying their overall net worth.</span>
