Answer:
Hydro-Girl and the other superheroes battled the fierce sea monster. To entertain.
We should pass a new helmet law so bikers and pedestrians will be safer. To persuade.
Thomas Jefferson was the third president of the United States. to inform
Explanation:
For 1 i'm not sure but if I were you I'd say dark. For 2 it's a. because that's the begining of a sentence. And I don't understand 3.