Jake and darnell are creating flashcards to help them study for a test on earth's internal structures. Which statement below is the only factual statement that they should include on their flashcards?.

How are 3-d printers useful in studying evolution? a. to color the fossils of organisms b. to create clones of extinct organisms c. to create replicas of fossils d. to prepare paper cutouts of organisms e. to study the composition of fossils