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
In walking, gravity tends to tilt pelvis and trunk to the unsuppoed side, major factor in preventing this unwanted movement is: 
Select and explain. 
A. Adductor muscles, B. Quadriceps, C. Gluteus maximus, D. Gluteus medius and minimus
D: Gluteus medius and minimus
Answer: D: Gluteus medius and minimus 
Explanation: Gluteus medius and minimus