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
Pseudo-isomorphic phenomenon is seen in ? 
Select and explain. 
A. Psoriasis, B. Lichen planus, C. Vitiligo, D. Molluscum contagiosum
D: Molluscum contagiosum
Answer: D: Molluscum contagiosum 
Explanation: Ans. is 'd' i.e., Molluscum contagiosum