C
Explanation:
It helped to inspire countless movements for independence
The main character of "Unbroken" was once a very competitive Olympian athlete, so giving up in any situation did not come easily to him. Ever since he was young he strived to push himself to physical and mental limits.
It was the battle of Gettysburg that was the most famous battle of the war and the battle after which the South started to decline. It caused the largest number of casualties of the entire war.