system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Heart disease in pregnancy, most common -
assistant
The correct answer is  Ans. is 'b' i.e., MS "Commonest cardiac lesions are of rheumatic origin followed by congenital ones.""Rheumatic valvular leasion predominantly includes mitral stenosis (MS) "