The closest answer to being correct is A., "Compartes la paella?"
It might be the difference between "proper" Spanish and what I know, but even that seems like it's wrong. If anything, I would ask "Compartirás la paella?"
But A. is your answer
La respuesta correcta es la A)
It’s B, because in this case the “para” means “to” while in letter A the “por” means “for” or “by”
Actually in spanish is “en realidad”