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
When sebaceous cyst of the scalp is ulcerated, excessive granulation tissue forms fungating epithelioma is known as: 
Select and explain. 
A. Cock's peculiar tumour., B. Sebaceous horn., C. Sequestration dermoid., D. Terstomatous dermoid.
A: Cock's peculiar tumour.
Answer: A: Cock's peculiar tumour. 
Explanation: None