This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'All are second messenger except \nSelect and explain. \nA. Cyclic AMP, B. Gaunylyl cyclase, C. Diacycglycerol, D. Inositol triphosphate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: remember that guanylyl cyclase an enzyme while cGMP is a secondary messenger Types ot secondary messenger are There are three basic types of secondary messenger molecules Hydrophobic (DAG) Hydrophilic(cAMP) Gases(NO) Ref-KDT 7/e p47,48', 'role': 'assistant'}]