This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Introduction to Central Nervous System, Subject name: Physiology
[{'content': 'Which of the following foramina allows cerebrospinal fluid to pass directly from the ventricular system into the subarachnoid space? \nSelect and explain. \nA. Foramen of Magendie, B. Aqueduct of Sylvius, C. Third ventricle, D. Lateral ventricle', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The foramen of Magendie and the two lateral foramina of Luschka form the communication channels between the ventricular system within the brain and the subarachnoid space that lies outside the brain and spinal cord.', 'role': 'assistant'}]