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: Anatomy
[{'content': 'Strongest flexor of the hip is - \nSelect and explain. \nA. Sartorious, B. Gluteus maximus, C. iliopsoas muscle, D. Pectineus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Psoas major and Iliacus together known as iliopsoas, are the chief flexors of the hip.', 'role': 'assistant'}]