I'd say C for 10, D for 11, and A for 12.
But you might want a second person to verify.
Egypt's government nationalized the Suez Canal
This meant that the canal would now be controlled by the government and they planned to use the money earned from traffic going through the canal to finish funding the Aswan dam. This resulted in the Suez crisis in which France, the United Kingdom, and Israel, invaded Egypt. The canal was opened at a later time, but the war kept going on.
Sentence 2 should be followed by a citation. The reason why this sentence should be followed by a citation is because there needs to be proof that Truman did in fact feel this way. Usually this sentence would be a paraphrase or summary from a primary source. Without a citation, one could argue that this was not the way Truman felt.
B) African Americans were prevented from leaving the plantations where they had been enslaved.<span />
