[quote=@ERode]
Your age range goes from 15 to 17 though. In that case, isn't it more likely that you'll have some people in Class C who are completely new, and some people in Class C who have already been here for two years?
[/quote]

The age range for the CS was just a matter of wanting students to be in that range. I felt 14 was too young, and I wanted the characters to age so I didn't go for higher.