Final answer:
The huntsman's action of rescuing Little Red Riding Hood and her grandmother constitutes the climax of the story, serving as the high point of tension and conflict.
Step-by-step explanation:
The huntsman contributes to the climax of the story by rescuing the characters from danger, specifically by saving Little Red Riding Hood and her grandmother from the belly of the wolf. The huntsman thus plays a crucial role in the story, as his actions directly influence the outcome and resolution of the plot. His motivations for checking on the grandmother's wellbeing lead him to the critical moment of the narrative, underscoring the theme of heroism and the fight between good and evil. This pivotal action creates a high point of tension and conflict, marking the climax according to the traditional narrative structure that includes the rising action, the climax itself, and the subsequent falling action.