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
Which of the following is a marker for neural tube defects? 
Select and explain. 
A. |Phosphatidylesterase, B. |Pseudocholinesterase, C. |Acetylcholinesterase, D. |Butyrylcholinesterase
C: |Acetylcholinesterase
Answer: C: |Acetylcholinesterase 
Explanation: Neural tube defects are associated with high levels of Acetylcholinesterase. Ref: Genetic disorders and Fetus, 4th Edition, Page 673; Ian Donald's Practical Obstetric Problem By Renu Misra, 6th Edition, Page 44