The Rough Riders was a nickname given to the 1st United States Volunteer Cavalry, one of three such regiments raised in 1898 for the Spanish–American War and the only one to see combat
Answer:
The building of the transcontinental railroad opened up the American West to more rapid development. With the completion of the track, the travel time for making the 3,000-mile journey across the United States was cut from a matter of months to under a week.
Explanation:
The answer is A ! Hope this helps
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