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
Which among the following is not a composite muscle: 
Select and explain. 
A. Pectineus, B. Flexor Digitorum Superficalis, C. Biceps brachialis, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: None of the above