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
Koebner's phenomenon seen in ? 
Select and explain. 
A. Psoriasis, B. Lichen nitidus, C. Vitiligo, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Ans. is `d' i.e., All the above See explanation- 2 of session- 1 of Skin of All India 2014-15 pattern of this book.