Which statement will correctly add a label whose text value can be changed later in the program?

Question $24$ options:

a$)$

self.label$1=$ self.addLabel$($text $=$ "Num$1")$

b$)$

self.addLabel$($text $=$ "Num$1",$ row $=0,$ column $=0)$

c$)$

self $=$ self.addLabel$($text $=$ "Num$1",$ row $=0,$ column $=0)$

d$)$

self.label$1=$ self.addLabel$($text $=$ "Num$1",$ row $=0,$ column $=0)$