I believe your answer would be B. Hope this helps!
Answer: He dispised them, he saw them as a waste of space. Nothing more than to use as slaves. And that they desevered everything bad coming to them.
Explanation:
<span>Prior to the Mexican American war president Polk sent John Slidell to Mexico to negotiate an agreement between that the Rio Grande River would be the southern border of Texas. ... The United States annexed the territory of California in 1848 following its victory in the Mexican-American War.</span>