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
[{'content': 'A placebo therapy given to one patient and new drug given to another patient. On comparing:Heart rate in placebo (72), Drug (86)SBP in placebo (110), Drug (150)DBP in placebo (80), Drug (68)Cardiac output in placebo (5), Drug (6) \nSelect and explain. \nA. Alpha 1 antagonist and Beta agonist, B. Alpha 1 agoinst and M3 agonist, C. Alpha 1 agonist and Beta agonist, D. Beta agonist and Beta 2 agonist', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANS. AAlpha 1 produces increased peripheral resistance and increased diastolic pressure, hence the drug mentioned is alpha 1 antagonist.Beta 1 produces tachycardia and increased systolic BP, hence drug is beta 1 agonist.', 'role': 'assistant'}]