Final answer:
The best description of a major theme from the given information points towards option C, which asserts that luck can play a role in bolstering an individual's confidence in themselves and their skills.
Step-by-step explanation:
The question asks which statement best describes a major theme of the story. While the provided excerpts do not specify a single story, they do center around themes of success, personal belief in ability, control over outcomes, and attributing causality to events. Based on these themes and the choices provided, the most fitting response seems to be that believing in luck can sometimes bolster one's confidence in their abilities and skills, which is closely related to choice C: Luck can help us gain confidence in ourselves and our skills. This aligns with the idea that success is rooted in personal resilience and the belief in one’s capacity to deal with varying situations.