This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Not a marker for muscle tumor- 
Select and explain. 
A. Desmin, B. Actin, C. Neurofilament, D. Intermediate filament
C: Neurofilament
Answer: C: Neurofilament 
Explanation: All others except neurofilament are elevated in muscle tumors. Basic Pathology, Robbins. Page no.: 795