Respuesta :
The correct answer is D) The U.S. and Mexico disagreed in the boundary between Texas and Mexico.
The reason that contributed to the outbreak of the Mexican War was that the U.S. and Mexico disagreed in the boundary between Texas and Mexico.
The Mexican-American War was fought between 1846 and 1848. U.S. President James K. Polk believed in interventionism and thought that the United States had a “manifested destiny” that gave them the right to acquire territory. Texas gained its Independence from Mexico in 1836, but the U.S. did not incorporate Texas into the Union in that moment. The Mexican government warned the United States that any attempt to do so would lead to war. When Polk won the election, he wanted the annexation of Texas to be a reality. He also wanted California and New Mexico.