as leader of the Republican party, Lincoln was outspoken in his views on slavery and expressed them during the debates of 1858. which of the following would best fit with his position?

a compromise of 1850
b wilmot proviso
c kansas-nebraska act
d dred scott decision

b wilmot proviso

The Wilmot Proviso was a proposed amendment to a bill in Congress that would have banned slavery in any territories acquired from Mexico during the Mexican-American War. Lincoln supported the Wilmot Proviso and believed that slavery should not be allowed to expand into new territories. This aligns with his views on slavery as expressed in the 1858 debates.