The answer is A: incident: A single event in a story is an incident.
Climax is a decisive moment when the rising action turns around into a falling action. The conflict is faced with the most dramactic event of the story.
Resolution is a literary device that means the conclusion of the story's plot. It's an integral part of the conflit of a story.
Plot is a literary term in a narrative that presents a sequence of events and happenings that make up a story.