The answer would be A, The Colosseum.
It failed because either the change did not work well in many business settings, or it was inefficient (due to the inefficiency of the conveyer-belt system). A more accurate reason is that the circuits couldn't handle the traffic during peak hour. The customer's orders were regularly mixed up. The conveyer-belt system was not fast enough or efficient enough to handle it.
The conclusion drawn about Truman's beliefs from the statement is that Soviets will spread communism.
<h3>President Truman belief towards Soviet Union</h3>
The President adopted the anti-Soviet policy in other to support the suffering nations by preventing the spread of Communism.
Hence, the conclusion drawn about Truman's beliefs from the statement is that Soviets will spread communism.
Therefore, the Option D is correct.
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