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: Pediatrics
[{'content': 'Which of the following is a marker for neural tube defects – \nSelect and explain. \nA. ↑ Phosphatidyl Esterase, B. ↑ Pseudocholinesterase, C. ↑ Acetylcholinesterase, D. ↑ Butyrylcholinesterase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]