Which sentence is punctuated correctly? A. Most people in Brazil speak Portuguese yet others speak Polish and German. B. Raisins are dried grapes, but, they have a burst of sweetness when you eat them. C. The snow is piling up, and the plows are unable to clear the roads. D. A tornado is a violent swirling column of air that touches Earth and, a water spout is an intense column of air over water.