Since this is a timed test I'm pretty sure i'm too late to give the answer but it's C. Hope this helped (although i'm late)
During the nineteenth century, Factory workers had it quite hard. The conditions were unbearable and are very dangerous. With dangerous vapor zooming around filling their lungs with dangerous chemicals. The eqiupment was most of the time dangerous and broken, which usally led to deaths.
Death camps and work camps I think
Sherman Antitrust Act of 1890 was the first major piece of legislation against monopolies. The goal was to keep things competitive. They were trying to keep prices from rising due to a company or group of companies purposely withholding stock or goods to create an artificially high demand for a product and causing the price to rise.
