This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'FSH, LH, TSH acts through \nSelect and explain. \nA. Cyclic AMP, B. Cyclic GMP, C. Adenosine cyclate, D. Calcium release', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]