Which quote from the text BEST helps explain a reason why the United States became involved in the Mexican-American War? (1 point)

Question

"The conflict centered on the independent Republic of Texas..."
O [Texas] opted to join the United States after establishing its independence from Mexico a decade earlier."
O Polk and others saw the acquisition of Texas, California, Oregon, and other territories as part of the nation's Manifest Destiny to spread democracy over the continent."

Answer 1

Polk and others saw the acquisition of Texas, California, Oregon, and other territories as part of the nation's Manifest Destiny to spread democracy over the continent."