B is the correct answer but the nice fellow above me is correct
A cause was that Texas declared its independence from Mexico. It changed the U.S. by the U.S. gaining California, New Mexico, Utah, Arizona, Colorado and parts of Wyoming.
The establishment of electric utilities led to widespread use of electricity in the United States.
<u>Explanation:</u>
Electricity was not used only to power homes but also factories and industries. This eventually enabled factories and industries to make use of large and sophisticated machines that could help in increasing the efficiency and productivity of the factories.
This enhanced the industrial revolution which was already taking place in the United States.With electricity, workdays and work time increased which led to increased production and thereby led to the boost in the economy of the United States.
Answer:
A. They negotiate with employers for workers.
Explanation:
