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: Skin
Fox Fordyce's disease is a disease of ? 
Select and explain. 
A. Eccrine sweat glands, B. Apocrine sweat glands, C. Sebaceous glands, D. Pilosebaceous glands
B: Apocrine sweat glands
Answer: B: Apocrine sweat glands 
Explanation: Ans. is 'b' i.e., Apocrine sweat glands See explanation- I of session- 9 of Skin of All India 2014-15 pattern of this book.