The ultimate goal was to brutalize the African Americans they felt that the African Americans had ruined the culture of America and cause problems for the US
Cause they might have the same stuff in order to be formed.
I believe the answer would be C
Westinghouse payed attention to the problems of railroad signaling. By purchasing patents to combine with his own inventions, he was able to develop a complete electrical and compressed-air signal system. In 1883 he began to apply his special knowledge of air brakes to the problem of safely piping natural gas, and within two years he obtained 38 patents for piping equipment.