A. She discovered that sometimes the best parties weren't about the food.
Explanation:
The climax of a story can be identified when the main character makes a crucial decision that makes a turning point on plot, and it potentially signals the end of the story.
This decision not only has an effect on the story, but on the character itself, as they tend to change their perspective about the main topic.
Regarding the example, the character comes to a point in the story that makes her realize food is not the most important thing in a party.
