The answer is B. I guess its right
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.
The Mississippi was used for transportation and their were ports along it before the LA purchase
