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: Medicine
All of the following statements about Creutzfeldt-Jakob disease are true, Except - 
Select and explain. 
A. It is a neurodegenerative disease., B. It is caused by infectious proteins, C. Myoclonus is rarely seen, D. Brain biopsy is specific for diagnosis.
C: Myoclonus is rarely seen
Answer: C: Myoclonus is rarely seen 
Explanation: None