One result of the expanding railroad system was that

A. Native Americans were able to protect the buffalo on the plains
B. the mining and meat packing industries developed
C. Chinese immigrants could leave New England and move west
D. the Panama Canal become less important to trade

To determine the answer to this question, we need to analyze the options and understand the impact of the expanding railroad system.

Option A states that Native Americans were able to protect the buffalo on the plains. While the railroad system did bring settlers and led to conflicts with Native American tribes, it did not directly contribute to their ability to protect the buffalo.

Option B suggests that the mining and meat packing industries developed as a result of the expanding railroad system. This is a plausible outcome, as the railroad provided a means of transporting resources and goods across the country, benefiting industries like mining and meat packing.

Option C suggests that Chinese immigrants could leave New England and move west due to the expanding railroad system. However, it is important to note that the main influx of Chinese immigrants was during the construction of the transcontinental railroad, rather than following its completion.

Option D states that the Panama Canal became less important to trade. This option is unrelated to the question, as the Panama Canal was not directly impacted by the expanding railroad system.

Considering the analysis above, the most fitting answer to the question is B. The development of the mining and meat packing industries aligns with the significant impact of the expanding railroad system, which facilitated the transportation of resources and goods across the United States.

https://www.google.com/search?q=results+of+transcontinental+railroad+completion&oq=results+of+transcontinental+railroad+completion&aqs=chrome..69i57.17885j0j7&sourceid=chrome&ie=UTF-8

Let us know what you decide.