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: Dental
Hidradenitis suppurativa is a disease of? 
Select and explain. 
A. Apocrine glands, B. Eccrine glands, C. Holocrine glands, D. None of the above
A: Apocrine glands
Answer: A: Apocrine glands 
Explanation: Suppurative hidradenitis is a chronic relapsing inflammatory disease originating in apocrine gland follicles.