How did the United States acquire Puerto Rico?

A. treaty

B. purchase

C. annexation with military involvement

D. invasion

The United States acquire Puerto Rico by Treaty.

Answer: Option A

Explanation:

The island of Puerto Rico was acquired by the U. S. by the Treaty of Paris in 1898 culminating the Spanish-American War. Merely a year had passed after the Puerto Rico gained self-rule from Spain when U. S. had established its authority over the region.

This Caribbean nation was one of the Spain's important possessions in the region of Caribbean. U. S. had launched an invasive war for acquiring Puerto Rico and ultimately succeeded when gained control over the island on 10th October 1898.