Multiple choice

During the late 1800s, which development led to the other three?

  1. formation of labor unions

  2. federal regulation of business trusts

  3. increased demand for natural resources

  4. growth of industry

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The growth of industry in the late 1800s was the primary development that necessitated the other factors: it created a massive demand for natural resources, led to the formation of labor unions to protect workers, and eventually required federal regulation of trusts.