This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2019, Subject name: Surgery
True statement about sebaceous cyst:- 
Select and explain. 
A. Arise in the epidermis, B. Mobile over skin, C. Commonly seen in scalp, D. Rarely contains central punctum
C: Commonly seen in scalp
Answer: C: Commonly seen in scalp 
Explanation: Generally sebaceous cyst is derived from infundibulum of hair follicles / caused by traumatic inclusion Sites are scalp, face, trunk and scrotum Usually sebaceous cyst contains a punctum (except scalp and scrotum) Skin is fixed over the cyst