This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of skin, 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: Hidradenitis suppurativa is a chronic and recurrent disorder, characterized by suppurative and scarring follicular papules, pustules and nodules in the apocrine areas such as the genitocrural area and axillae Ref Harrison20th edition pg 1208