Customer service: "What class do you want?"
Xiao Ming: "How many classes do you have in total?"
Customer service: "Special class, first class, second class, etc. Second class requires a little more waiting time."
Xiao Ming: "Let me see, wait a minute."
Customer service: "Don't wait, there will be no more seats if you wait any longer."
Xiao Ming: "Then don't wait, this is it."
Excuse me, what class did Xiao Ming buy in the end?
A, Special class; B, First class; C, Second class; D, etc.; E, Don't wait; H, No wait......