What does ACC stand for in NCAA basketball?

The acronym ACC stands for Atlantic Coast Conference. This conference is one of the premier collegiate athletic conferences in the United States, particularly well-known for its strong basketball programs. Formed in 1953, the ACC includes several respected universities that have made significant contributions to college basketball history. Teams within this conference, such as Duke, North Carolina, and Virginia, have consistently performed well in both regular season play and postseason tournaments, including the NCAA Tournament.

The other options provided, while sounding plausible, do not represent recognized entities within the NCAA basketball landscape. The American Collegiate Conference and the All College Championship are not established conferences or tournaments in NCAA basketball, and Atlantic City Championships does not correspond to a notable or recognized championship event in the sport. Thus, the Atlantic Coast Conference is indeed the correct and relevant interpretation of the acronym ACC in this context.