This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Biochemistry
[{'content': 'Following are second messengers \nSelect and explain. \nA. CAMP, B. CGMP, C. Inositol triphosphate, D. Diacylglycerol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cyclic adenosine monophosphate(cAMP, cyclic AMP, or 3&;,5&;-cyclic adenosine monophosphate) is a second messenger impoant in many biological processes.cAMP is a derivative of adenosine triphosphate(ATP) and used for intracellular signal transduction in many different organisms, conveying the cAMP-dependent pathway.Ref: DM Vasudevan, 7th edition', 'role': 'assistant'}]