Answer:
Students enjoy spending time on their computer, so why not make it educational?
Affect - someone causing something.
Effect - the result of what was caused.
EX: Destroying trees negatively affects the wildlife.
EX: The effect that destroying trees has on wildlife is negative.
I would say A. because questions have nothing to do with head aches so B is out. C is out because you wouldn't generally find joy in that or would you reask many questions. D. is a no because what does sleep have to do with questions.
I think it's fuels the external conflict. I might be wrong tho