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
2-month-old girl present with verrucous plaque on the trunk. What is your most probable diagnosis? 
Select and explain. 
A. Incontinentia pigmentosa, B. Daer disease, C. Congenital naevus, D. Icthyosis
A: Incontinentia pigmentosa
Answer: A: Incontinentia pigmentosa 
Explanation: A i.e. Incontinentia pigmenti