The correct answer is B) Lincoln's debates with Stephen Douglas.
What helped bring Abraham Lincoln to national prominence was his debates with Stephen Douglas.
When Abraham Lincoln was the Republican Candidate for the Senate of the state of Illinois, he participated in many debates with his rival, Democrat Stephen A. Douglass. These events were held in 1858 as part of their respective campaigns, and one of the main topics of the debate was the issue of slavery in the United States. His ideas an eloquence gave Abraham Lincoln national recognition and prominence.
