In the year 1821, the United States officially obtained land with access to the Pacific Ocean.
Access to the Pacific Ocean was granted to the United States by Oregon.
What is Pacific Ocean?
There are total five oceans in the whole world and Pacific Ocean is one of them. It is the largest of all.
What is Oregon?
There are fifty states in United States and Oregon is one of them. It is situated in the north-western region.
Hence, option A is correct.
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