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
Strongest flexor of the hip is - 
Select and explain. 
A. Sartorious, B. Gluteus maximus, C. iliopsoas muscle, D. Pectineus
C: iliopsoas muscle
Answer: C: iliopsoas muscle 
Explanation: Psoas major and Iliacus together known as iliopsoas, are the chief flexors of the hip.