The 1922 NCAA football season had a number of unbeaten and untied teams, and no clear-cut champion, with the "Official NCAA Division I Football Records Book" listing California, Cornell, Iowa, Princeton, and Vanderbilt as national champions. California, Cornell, and Princeton were all picked by multiple selectors.
California went unbeaten in the 1922 NCAA football season
It is neither because it only says a number of teams, not which ones went unbeaten. The system associates California with unbeaten teams