Innocent and exuberant, because it's told from the point of view of a little girl.
I'd say it's D) Indirect object, but I'm not sure, so don't take my word as gospel :)
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. i know this because that’s what it says in the story
The definition it would someone that is smart