I would say c limited slave trade between Africa and the colonies :)
The Space Race Begins. It is 1957 and the U.S. and the Soviet Union are locked into the Cold War. The Soviet Union has just launched the world's first satellite, Sputnik. Fearful of Soviet military control of space, the Americans quickly ready a rocket.
Jim crow laws, didn't allow them to vote
I believe it's asking you how many votes you need to get the majority. example: in a presidential election, more than 50% is the majority.