Answer:
c. Sheila loses her notes right before she has to give a presentation.
Step-by-step explanation:
Numeral C) contains a premise that has a lot of conflict: Sheila loses important notes right before the presentation, so the story will have to deal with the conflict, and reach a solution, which may not even be reached.
Numeral D) could also be a conflictive premise but only as long as the army is an enemy army. It is a friendly army, the march would simply be a parade. Because we are not given more specific information about it, numeral C) is a better option.