Answer:
I think a is answer if I was wrong I am sorry
It’s B, depressed since it signifies that the person is sad.
What his life was before the transformation.
Penguins sing to form bonds to eachother. Mumble taps his feet instead of singing, hence to term “Happy Feet” Memphis becomes worried for Mumbles behavior in the beginning of the movie. A heart song is what they sing to find their partner, husband or wife.