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: Physiology
[{'content': 'False about thyroid stimulating hormone (TSH) is: \nSelect and explain. \nA. secretion is pulsatile In nature, B. normal plasma level is 0.2-0.5 micro IU/ml, C. secretion is entirely under control of hypothalamus, D. increases synthesis and release of thyroid hormones', 'role': 'user'}, {'content': 'Answer: C \nExplanation: TSH secretion depends upon the levels of T3,T4 as it is affected by FEEDBACK REGULATION Ref: guyton and hall textbook of medical physiology 12 edition page number: 555,556,557', 'role': 'assistant'}]