Which of the following is a correct definition for an instance method, print$\_$age, that has two parameters, date$\_$of$\_$birth and date$\_$today, passed to it$?$

a$.$ def print$\_$age $($self$)$ :

b$.$ def print$\_$age$($self$,$ date$\_$of$\_$birth, date$\_$today$)$:

c$.$ def print$\_$age $($date$\_$of$\_$birth, date$\_$today$)$ :

d$.$ def print$\_$age $()$ :