C: to declare war.
Congress is the only beach that can declare war.
<span>Children worked long hours in unsafe conditions.</span>
Answer;
They became rich by building monopolies
Explanation;
-America's tycoons in the 19th and early 20th centuries, nicknamed as "robber barons," built massive empires and accumulated unprecedented wealth.
-Many of these men gained their vast fortunes either at the expense of their factory workers or by methods that were considered unscrupulous even back then, a time when insider trading wasn't yet outlawed.
-However, some of them also gave away their fortunes to build universities, hospitals, libraries, and museums that still dot America today.
The second option is the correct answer.
Back in day, there was child labor, so if parents needed more money, they would force there children to work. Thus, they didn't have time for school.
Eastern and southern Europeans made up the majority of immigrants.