This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscles of Lower Limb, Subject name: Anatomy
Name the Marked Structure -5 
Select and explain. 
A. Gracilis, B. Vastus lateralis, C. Rectus femoris, D. Vastus medialis
A: Gracilis
Answer: A: Gracilis 
Explanation: Gracilis