Which statement explains why the Princess finally takes the frog as a companion?

A.
The honorable king took pity on the frog and made his daughter fulfill her promise.

B.
You can be comforted for I will offer you sensible advice.

C.
But the frog dipped his head beneath the water and returned with the ball in his mouth.

D.
The princess realized it was of no use to complain, for she was obliged to take the frog up to her room.

D. The princess realized it was of no use to complain, for she was obliged to take the frog up to her room.