B. certain drugs were declared illegal
Pulitzer and Hearst published stories that exaggerated the mistreatment of Cubans by the Spanish, which bred public animosity toward Spain in the years leading up to the Spanish American War. The 1898 sinking of the US battleship Maine is often cited as the “peak” of yellow journalism.
The Battle of Verdun is considered to be one of the most brutal events of World War I, the site itself is remembered as the "battlefield with the highest density of dead per square yard."
It made lots of money for industrialists, tycoons, british investors, prospectors headed further west, and copper, gold, sliver mines sprang up, farmland that was free was taken at come and go basis by pioneers.
Hope this helps.