Answer:
A
Explanation:
I'm literally learning this now in APUSH. In 1914 which is the era of the gilded age people were dependent on railroads and oil. Thanks to help from Carnegie (and the other 4 men) (around 1914) and steel, the US economy rose back from its divided chaos.
The society that sought reform in China was known as the righteous fists of harmony
The reign of terror crossed the line of Justice. They arrested anyone who might be disloyal and kill hundreds by the guillotine. It was a blood bath. Robespierre was in charge and killed anyone who he thought was the new revolutionary time. He went overboard with the killings. The reign of terror ended with the the guillotine of Robespierre.