The correct answer is <span>William McKinley
President McKinley beat William Jennings Bryan and led the United States to a new era of prosperity where the parties started fighting for strong economy and human rights. This was the beginning of the progressive era after which presidents like Teddy Roosevelt came.</span>
The best option from the list would be that "<span>A. A factory dumps its industrial waste into a river that serves as a source of drinking water for a nearby town," since a main goal of the Progressives was to expose the negative societal impacts large corporations had in the US. </span>
