Answer:
They put them in a chamber and gassed them.
Explanation:
What are the options? Comment back within the next hour and I will answer again
Explanation:
Industrial expansion and population growth radically changed the face of the nation's cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace. Mass transit, in the form of trolleys, cable cars, and subways, was built, and skyscrapers began to dominate city skylines.
Because they were the lowest class and didn't have a fair vote