2 of your classmates have a disagreement about what can happen to a sedimentary rock: David says, "A sedimentary rock can only turn into a metamorphic rock before it can change into a different type of rock." Veronica says, "A sedimentary rock can turn into either a metamorphic rock or an igneous rock, depending on what forces work to change it." After reading these two statements, which student is correct? Explain your reasoning in your answer.