This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sympathetic System, Subject name: Pharmacology
[{'content': 'Propanolol, a non-selective beta blocker can be prescribed to decrease anxiety associated with: \nSelect and explain. \nA. Chronic neurotic disorder, B. Schizophrenia, C. Sho term stressful situations, D. Endogenous depression', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Propranolol blocks Beta 1 and Beta 2 receptors, but has weak activity on Beta 3 subtype Propanolol can used for controlling the performance anxiety, major manifestations of which are due to increased sympathetic activity (tachycardia, palpitalions etc). Propranolol suppresses anxiety in sho-term stressful situations, but this is due to peripheral rather than a specific central action. It does not affect the psychological symptoms (e.g worry, tension and fear)', 'role': 'assistant'}]