Consider the following piece of code:

$""$Module for simple mathematical calculations" $"1"$

class calculate:

$"$n$"$tmptements simple maths functions" $"$n:$"$

def add$($num$1,$ num$2).$

$""\text{'}$Add two numbers".".

b$.$ a$=$num$1+$num$2$

$"$f print the result

print'Result is $\text{'}$a$)$

What does line $7$ represent?

A

Function docstring

B

Class docstring

C

Module docstring

D $$ Code comment