This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
Increase in cAMP is caused by 
Select and explain. 
A. a (Alpha) receptor, B. Somatostatin, C. b (Beta) receptor, D. Acetylcholine
C: b (Beta) receptor
Answer: C: b (Beta) receptor 
Explanation: Ref:- kd tripathi; pg num:-48