Given the following window class, where will the button be located on the window?

class Calc$($EasyFrame$)$:

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

$$ EasyFrame.$\_\_$init$\_\_($self$,$ title $=$ "Demo", width $=300)$

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

$$ self.xField $=$ self.addIntegerField$($value $=0,$row $=1,$ column $=1)$

$$ self.addButton$($text $=$ "Compute", row $=0,$ column $=0,$ columnspan $=2,$ command $=$ self.compute$)$

$$ def compute$($self$)$:

$$ self.xField.setNumber$(10)$

Question $25$ options:

a$)$

bottom center

b$)$

top left

c$)$

bottom left

d$)$

top right

e$)$

top center