C. my swimming skills
The dramatistic pentad has five categories. The agent, scene, act, agency and purpose. The categories are commonly associated with question words as follows: Act = What?, Scene = When? Where? Agency = How? Agent = by whom?, Purpose = Why? In the options, A refers to Scene, B refers to Purpose, C refers to Agency, D refers to Agent. C refers to agency because it explains how the agent saved the swimming skills. This would be easier if we actually knew the story.