Cal is a member of a cheerleading team. His team participates in a competition. Which is a statistical question about the competition?(1 point)
A: How many teams participated in the competition?
B: What are the names of the coaches of each team in the competition?
C: What is the name of the oldest cheerleader on the winning team in the competition?
D: What was the average number of points scored by the teams in the competition?