Along with most others, I fell into this trap and answered "king_schema". However I do NOT think it's a bad question.
The script doesn't mention anything about the creation of king_login, so it is implied that this login already exists. In that case, we cannot assume that it either is or isn't already a member of any server roles, including sysadmin.
The fact that the user was created and added to the db_owner database role is just a red herring.
Thanks for the question Anoo.