This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Ductus-dependent congenital hea lesions is a type of \nSelect and explain. \nA. Distributive shock, B. Obstructive shock, C. Hypovolaemic shock, D. Cardiogenic shock', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ductus dependent congenial cardiac lesions represent a decreased in cardiac output secondary to direct impediment to right- or left-hea outflow or restriction of all cardiac chambers. Ref:- Nelson&;s textbook of paediatrics', 'role': 'assistant'}]