In the Lincoln-Douglas Debates, What View Did Stephen Douglas Take

In the Lincoln-Douglas debates, what view did Stephen Douglas take?

A) If each state, slave or free, worried only about its own status, then there should be harmony.
B) Douglas believed that the national government should have the final say on whether a state was slave or free.
C) If slavery could be extended to the Pacific, then manifest destiny could be achieved.
D) Douglas stated slavery was wrong but should not be abolished.