Marianne is comparing two animals: a fruit fly and a fruit bat. She asks, "Do a fruit fly and a fruit bat share a common ancestor in their evolutionary history?" According to evolutionary theory, what is the answer to Marianne's question? A. Yes, because the fruit fly and fruit bat share the common trait of eating fruit. B. No, because the fruit fly is an insect and the fruit bat is a mammal. C. Maybe, depending on specific traits at the organism and cellular levels of both animals. D. Yes, because all living things share a common ancestor.