12. the kansas-nebraska act nullified the missouri compromise bya. allowing slavery's spread to areas that had been free for more than 30 yearsb. abolishing slavery in slave states. c. lowing slavery in all states. d. ending slavery in agreed-upon slave territories.

The idea of manifest destiny simply stated it was america's destiny to expand from the atlantic ocean to the pacific. the word "destiny" implies an idea that it was within our rights as a nation to expand. in a paragraph of 125+ words, explain what could be wrong with that idea.