The answer is; A.
The climax of a story is characterized by high tension and drama and is considered the highest point in the plot. The main character is usually in a crisis and he or she finds a solution to a major conflict (such as a hero defeating the villain or evil element). Climaxes are considered to be significant in giving the story an overarching meaning.
To tell your reader everything you will say.
The climax would be the intense, exciting, or important point. So the climax of Coco would be where Miguel takes the guitar and strums it.
