4. Which development contributed to war between the United States and Mexico in 1846? A. The sale of Louisiana B. The dispute over Texas C. The purchase of Florida D. The capture of Puerto Rico

B. The dispute over Texas.

Explanation:

The settlement of Texas by American colonists since the 1820s, the separatist aspirations of American settlers in the 1830s and 1840s, the Battle of Alamo, the proclamation of independence by Texas and an unsolved border dispute; all of these events contributed to the outbreak of the Mexican-American War in 1846.

i can

explanation:

the exclusive possession or control of the supply or trade in a commodity or service.