Answer:
C self
Step-by-step explanation:
The word Internal means Inside meaning yourself and it especially means it when you have a character with it for example if I have an eternal conflict like depression I have to deal with it Character vs character is some1 vs some1 like i hate my brother (example) and we fight all the time about who is right or wrong. Nature is wilderness stuff like if your stuck in the mountain or The game Ark you have to survive and live with it Society is the world like financial stuff or maybe even your the most wanted person and everyone is looking for you and the only one that can fit with internal is C.
Hope this helps!