This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'Which of the following is an infective form of Ascaris? \nSelect and explain. \nA. Coracidium, B. Filariform larvae, C. Rhabditiform larvae, D. Embryonated egg', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Eggs are fertilized before release and embryonate to the second stage (larval stage) inside the egg, which is then ingested by a new host to start a new infection.', 'role': 'assistant'}]