The Mexican Cession was bought in 1853 and completed our continental U. S

True or False

True

Explanation:

The Gadsden Purchase, or Treaty, was an agreement between the United States and Mexico, finalized in 1854, in which the United States agreed to pay Mexico $10 million for a 29,670 square mile portion of Mexico that later became part of Arizona and New Mexico.

i would say your answer would be the second option.

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d. she conquered the black sea coast and parts of poland.