Consider the code below. Which of the following is an example of an instance attribute?

class Student:

def init $($self$)$:

self.first name $=\text{'}$ ABC $\text{'}$

self.last$\_$name $=$ 'DEF'

def print name $($self$)$:

print $($self$.$first name$)$

print $($self$.$last name$)$

student $1=$ Student $)$

student$1.$print$\_$name $()$

a$.$ print$\_$name

b$.$ last$\_$name

c$.$ student$1$

d$.$ Student