Name the ice hockey league featuring collegiate players in Canada.

The correct answer is Canadian Interuniversity Sport (CIS) Hockey because it specifically refers to the organized league that governs university-level ice hockey in Canada. CIS Hockey is the top level of competitive university hockey in Canada, featuring teams from various Canadian universities. It emphasizes both the academic and athletic development of collegiate players, allowing them to compete at a high level while pursuing their education.

In contrast, the National Collegiate Athletic Association (NCAA) is based in the United States and does not pertain to Canadian collegiate hockey. The Canadian Professional Hockey League (CPHL) is not a collegiate league but rather was an independent minor professional league that operated for a short time. The Ontario Hockey League (OHL) is a major junior hockey league and serves as a developmental league for younger players, typically ages 16 to 21, and is not classified as a collegiate league.