The South Grew Increasingly Worried About the Future of Slavery

The South grew increasingly worried about the future of slavery because

A) the Wilmot Proposal was likely to be revived and enacted by Congress after the congressional elections of 1850.
B) the admission of California might permanently tip the political balance against them.
C) the Supreme Court was increasingly likely to issue a decision abolishing slavery everywhere in the United States.
D) President Taylor was the first president openly critical of slavery.
E) popular sovereignty would almost certainly prevent the spread of slavery.