The Minnesota Twins, a Professional Baseball Team, Wanted to Develop

The Minnesota Twins, a professional baseball team, wanted to develop creative ways to boost sagging attendance at its ball games. The Twins hired a moderator who, after every home game during the month of July, led informal discussions with groups of 6 to 10 fans to find out what they did and did not like about the baseball team and their experience at the stadium. Discussions were videotaped for later review. These informal research sessions are called

A) experiments.
B) secondary data.
C) focus groups.
D) panels.
E) depth interviews.