I would guess that the tone of this excerpt would be Interrogatory. I really hope this helped :)
Is a lunatic and he is crazy for the horses
An intransitive verb can't be followed by "what"; here it's b); skates.
You can't say "she skates what?"
the rest can be followed by "what", for example: Jenna chose what? (whom?) as her partner? Ian sharpened what?