The correct statement about the Peoria Speech is:
A Lincoln suggested that freed slaves might be sent to Africa.
In the Peoria Speech, Abraham Lincoln articulated his views on slavery and the future of freed slaves, emphasizing the possibility of colonization in Africa. While he argued against the expansion of slavery and expressed a desire for African Americans to have opportunities, he also discussed colonization as a potential solution at that time.
However, it is also important to note that options B, C, and D contain elements that could be debated based on interpretations and context. For example, option D references his opposition to Stephen Douglas, but the speech's primary focus was more on the principles of freedom and the moral implications of slavery rather than direct rebuttal to Douglas's charges.
Ultimately, option A most directly reflects a specific point made in the Peoria Speech regarding colonization.