Abraham lincoln objected to the kansas nebraska act because he thought

Slavery should be contained and not spread to new territories. He said that the passage of Douglas’s Kansas-Nebraska Act angered him “as he had never been before.” It transformed his views on slavery.

Explanation:

The congressman named Abraham Lincoln illustrated the transition of many northern Whigs to the new Republican party. Unless the North mobilized to stop the efforts of pro-slavery southerners, the future of the Union was imperiled. From that moment on, Lincoln focused his energies on reversing the Kansas-Nebraska Act and promoting the anti-slavery movement. He often asked audiences if any issue had so divided and aroused the nation has had the future of slavery. By stopping the expansion of slavery and affirming the moral principle of freedom for all, “we shall not only save the Union,” Lincoln said in 1854, “but we shall have so saved it, as to make, and to keep it, forever worthy of the saving.”

your answer would be (a)

d is the right answer