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: Medicine
Gibson’s murmur is a feature of 
Select and explain. 
A. Patent Ductus arteriosus, B. Mitral Valve prolapse, C. Pulmonary regurgitation, D. Mitral regurgitation
A: Patent Ductus arteriosus
Answer: A: Patent Ductus arteriosus 
Explanation: Continuous machinery murmur of PDA is also called Gibson’s murmur.