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: Surgery
All are true regarding sebaceous cyst except: 
Select and explain. 
A. Is classified as an epidermoid cyst, B. Only occurs on the face and scalp, C. Can, if ulcerated, becomes a sebaceous horn, D. Characteristically displays a punctum
B: Only occurs on the face and scalp
Answer: B: Only occurs on the face and scalp 
Explanation: None