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: Anatomy
[{'content': 'Direction of fusion of neural folds during formation of neural tube is: \nSelect and explain. \nA. Caudal, B. Cranial, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': "Answer: C \nExplanation: Gradually, the neural folds approach each other in the midline, where they fuse. Fusion begins in the cervical region (fifth somite) and proceeds cranially and caudally. As a result, the neural tube is formed. Ref: Langman's embryology 11th edition Chapter 6.", 'role': 'assistant'}]