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': 'Where the endoderm and ectoderm approach each other in the head & neck region during the 4th week \nSelect and explain. \nA. Pharyngeal Grooves, B. Pharyngeal pouch, C. Pharyngeal membrane, D. Pharyngeal arch', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Pharyngeal membrane', 'role': 'assistant'}]