The most probable answer would be (C) AC Electric Power.
All of the options that are presented in the problem are all associated with Thomas Edison except for the AC Electric Power. In the times of the War of the Currents between him and Nikola Tesla, the inventor of the AC Electric Power. The Phonograph, the Incandescent light bulb, the motion picture camera, and the universal stock ticker were all associated with Thomas Edison. The Phonograph was invented by him at around 1877. The incandescent light bulb was at around 1879. The motion picture camera, on the other hand, was at around 1889, while universal stock ticker was at around 1869.
So Core was an organization trying to do peaceful protests to end segregation and discrimination in the South. Core set up protests like sit ins and the marches that the kids preformed. Core connects with the Freedom rides because several whites and blacks went down to Alabama and used the opposite race water fountains. They also sat in different sections of the bus like whites sat in the colored section and viseversa. Core was technically one of the driving organizations that fought for racial equality.
Since parts of China and North Vietnam were already communist, the United States was afraid that communism would spread throughout Asia. So, they decided to send money, supplies, and military advisers to help the South Vietnamese Government.
Pretty much all abled men of age were drafted into war, especially those of the lower classes.
Of course, wealthier men who had more money would often buy their way out of fighting in the war. Women on the other hand had no such requirements as their male counterparts, and in some cases, they weren't even allowed to join the military.
This wasn't a fair system, because far more men were losing their lives than women, (Not that women are more deserving of dying than men. No one should have to fight in a war against their will.) and only if a man had the money, was he allowed to basically, live.
The answer would be " He wanted a base from which to start a slave uprising"