This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': "Which is not elevated in a child presenting with icterus, Pruritus and clay coloured stools \nSelect and explain. \nA. Gamma glutamyl transpeptidase, B. Alkaline phosphatase, C. 5'- nucleotidase, D. Glutamate dehydrogenase", 'role': 'user'}, {'content': "Answer: D \nExplanation: The child is suffering from obstructive jaundice or Cholestasis Enzymes elevated in Chloestasis ALP 5'-Nucleotidase Gamma glutamyl transpeptidase Ref: Harrison's 19th edition Pg no : 1997", 'role': 'assistant'}]