Question

Which scenario shows internal conflict best

Answer 1

You did not provide possible scenarios if they exist. If they don't an internal conflict would be if a character had to choose between what he/she thought was right, and what he/she wanted to do. Often these two coincide and these moral decisions are essential parts of internal conflicts.

Answer 2

A soldier must confront her fears in order to help her comrades conquer the enemy - this is the internal conflict, the rest of them are external.