Which of the following BEST explains how the Compromise of 1850 arose out of territorial expansion?
A 
As the Unites States gained territory from Mexico, northerners petitioned to prohibit slavery in all newly acquired territory. 
B 
As the United States gained territory from Mexico, slave holders feared their chattel would escape beyond their prescriptive jurisdictions. 
C 
As the United States gained territory from Mexico, citizens grew anxious as to whether such territory would embrace or abolish slavery. 
D 
As the United States gained territory from Mexico, southerners argued that the sovereignty of the people’s rule should make enslavement decisions. 
will mark brainliest if correct