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
Herberdens nodes are seen in: 
Select and explain. 
A. Rubella, B. Rubeola, C. Osteoarthritis, D. Typhoid
C: Osteoarthritis
Answer: C: Osteoarthritis 
Explanation: None