Why is Granny humming again at the end of of "Blues Ain't No Mockin Bird?"

(1 point)
Responses

She is angry at the cameramen.
She is angry at the cameramen.

She is glad Grandaddy got rid of the cameramen.
She is glad Grandaddy got rid of the cameramen.

She always hums when she makes rum cakes.

She is glad Grandaddy got rid of the cameramen.

is this correct