The correct option is A.
What was the first territory the United States acquired beyond the borders of its 48 contagious States?
The country's first and largest territorial acquisition was the Louisiana Purchase in 1803 for $10 million; it nearly doubled the landmass of the original 13 states. In 1947, the Mariana Islands, Caroline Islands, and the Marshall Islands became the most recent U.S. territorial acquisitions, as of August 2021.
How did the US acquire Alaska and the Midway Islands?
The Senate approved the treaty of purchase on April 9; President Andrew Johnson signed the treaty on May 28, and Alaska was formally transferred to the United States on October 18, 1867. This purchase ended Russia's presence in North America and ensured U.S. access to the Pacific northern rim.
Learn more about the treaty of purchase here https://brainly.com/question/2882580
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