Which of these sentences includes an infinitive phrase? A. He fell into the river and waited until they pitched the tent to change his clothes. B. When I saw what was in the box, I thought back to the very first time I played softball on a league. C. By the time I'd made it to Algebra class, I had worked myself up into a tension-filled frenzy. D. My closet is empty except for my cheerleading outfit and the jade green formal I wore to the prom.