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
All are true regarding LCH except 
Select and explain. 
A. Papular trunk lesions with scaling & crusting, B. Ulcerative nodules on mucosa, C. Calvarial defect with map lesions & floating teeth, D. CD - 68 positive
D: CD - 68 positive
Answer: D: CD - 68 positive 
Explanation: D i.e. CD - 68 positive