Hakkai blinked and looked up from where he was kneeling on the floor of the small bedroom , digging through his pack in search of his toothbrush . Hakuryuu was already asleep on the pillow of the spare bed . " It was just a simple room switch , Goku , " Hakkai said with a smile . Goku huffed slightly .

Question: Why might Hakkai looking for his toothbrush ?
Answer: Hakkai wants to brush Hakuryuu 's teeth before bedHakkai wants to brush Goku 's teeth before bedNone of the above choices .Hakkai wants to brush the room before bed