C their is allot better, and next time run each word through the sentence.
The boy, curious by nature, investigated, but found not a thing.
Answer:
IMO it's probably option A
Answer:
Falling Action. It goes exposition (the explanation), rising action (the events that lead up to the character achieving his goals), the climax, the falling action (when the goal has been met and the plot is wrapping up), and the resolution (a type of "they lived happily ever after" and is truly finishing up everything).
Explanation: