LAST EDITED ON Apr-29-02 AT 03:55 PM (EST)
To start with, before the first pick has been made, there were 3 cases:
car goat goat
goat car goat
goat goat car
How did you manage to get 4 cases after the pick?
If you decided to distinguish goats at thi stage, why not to distinguish them before the first pick? You would have B and C repeated twice.