Assume you are running the following code in the Python interpreter:

class Account:

num$\_$of$\_$accounts $=0$

def $\_\_$init$\_\_($self$,$ id$)$:

self.id $=$ id

Account.num$\_$of$\_$accounts $+=1$

def register$($self$,$ student$)$:

self.student $=$ student

return f'Registered: $\{$student$\}\text{'}$