This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
[{'content': 'Alkaline phosphatase contains \nSelect and explain. \nA. Cobalt, B. Zinc, C. Iron, D. Copper', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ALP is a nonspecific enzyme which hydrolyzes aliphatic, aromatic or heterocyclic compounds. the pH optimum for the enzyme reaction is between 9 and 10.it is activated by magnesium and manganese. zinc is a constituent ion of ALP.Ref: DM Vasudevan Biochemistry, page no: 305', 'role': 'assistant'}]