Which Issue Most Concerned Southerners in 1849──1850

Multiple Choice

Which issue most concerned southerners in 1849──1850?

A) They feared the political balance in the Supreme Court might tip against them.
B) They worried that admission of Missouri as a free state might set a damaging precedent for Utah and New Mexico.
C) They were concerned that Mexico was plotting to retake Texas.
D) They were angry about the loss of runaway slaves through the "Underground Railroad."
E) They worried about the prospects of a constitutional amendment abolishing slavery.