I believe the answer is B) How to determine the difference between right and wrong. Many medieval texts were themed off of this question. They were about great heroes defeating their foes in great battles.
Hope this helps! Please let me know if I'm wrong :)
I believe the answer is C. Even though they can all be good.
The statement that shares a theme with the Gettysbrug Address would be letter D. "We will research the goal of freedom in Birmingham and all over the nation because the goal of america is freedome". I hope you are satisfied with my answer and feel free to ask for more