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

Responses

"The conflict centered on the independent Republic of Texas..."
"The conflict centered on the independent Republic of Texas..."

"[Texas] opted to join the United States after establishing its independence from Mexico a decade earlier."
"[Texas] opted to join the United States after establishing its independence from Mexico a decade earlier."

"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."

"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."