Im pretty sure it would be c
Internal. Which means "problems in the inside" as with themselves. For example, many people face depression, anxiety, paranoia----just to name a few. All of those are MENTAL illness that people have to battle with daily. External conflict/ battles, are with actual people.. something we can see. External means "outside". Hope I helped!
1.) Joey owes 4 people 3 dollars but he has no money. Therefore, he has a balance of -12
This is a real world meaning