Given the Bitterness of the Congressional Debate, Why Was Stephen

Given the bitterness of the congressional debate, why was Stephen Douglas successful in getting the Compromise of 1850 passed?

A) He dropped the question of the slave trade in the District of Columbia.
B) He could depend on a sympathy vote from supporters of deceased President Taylor.
C) His support for popular sovereignty allowed many abolitionist senators to vote with him.
D) He split the issues into separate bills that would be voted on one at a time in Congress.
E) He was in better health and was more charismatic than Clay.