This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'Activation of protein kinase-C causes \nSelect and explain. \nA. Increase adenylyl cyclase, B. Phosphorylation of proteins, C. Increased cAMP, D. Increased ion channel conduction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Protein kinase C, commonly abbreted to PKC (EC 2.7.11.13), is a family of protein kinase enzymes that are involved in controlling the function of other proteins through the phosphorylation of hydroxyl groups of serine and threonine amino acid residues on these proteins, or a member of this family.', 'role': 'assistant'}]