2. What played a role in the disagreement between the U. S. and Mexico?

The Mexican-American War

Explanation:

The Mexican-American War was a conflict between the United States and Mexico, fought from April 1846 to February 1848.It had stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande, The United  States Claim.

the answer you are looking for is letter c. he supported the idea of a un-run war in serbia to bring peace to the area.

supporting this idea was an important step that bill clinton took in order to attempt to secure bosnia and keep the peace there. he led peace reconciliations -known as the dayton agreement- leaving bosnia as a single state made up of two parts with one central government.