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: Physiology
[{'content': 'Detectable fall in blood pressure occurs in \nSelect and explain. \nA. Sympathetic stimulation, B. Inhibition of VMC, C. Disinhibition of VMC, D. Stimulation of vagal centre', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Baroreceptor stimulation results in the activation of two mechanisms.\n1.\xa0\xa0\xa0 Stimulation of cardiovagal inhibitory centre- Nucleus ambiguous- Leads to Bradycardia.\n2.\xa0\xa0\xa0 Inhibition of vasomotor centre- Rostral ventrolateral medulla- Leads to decreased BP.', 'role': 'assistant'}]