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
All of the following muscles are composite muscles Except: 
Select and explain. 
A. Pectineus, B. Rectus femoris, C. Adductor magnus, D. Biceps femoris
B: Rectus femoris
Answer: B: Rectus femoris 
Explanation: B i.e., Rectus femorisFlexor digitorion profundus (FDS), Adductor magnus, biceps femoris, pectineus and quadriceps femoris (not rectus fernoris)(2 are all composite muscles. Rectus femoris is only a pa of composite of 4 muscles known as quadriceps femoris.