Here’s something that may help: https://study.com/academy/answer/what-effect-did-the-final-solution-have-on-the-population-of-eastern-europe.html
B. is the answer you will want to put. While they did let African Americans fight in the war in a special unit, they would not allow that unit to be led by an African American. It was headed by a white man named Robert Gould Shaw.
The nullification crisis was a dispute over the power of the states to reject unconstitutional federal laws.
