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
Causes of localized hypopigmented macule or patch are all except ? 
Select and explain. 
A. Vitiligo, B. Piebaldism, C. Pityriasis alba, D. Freckle
D: Freckle
Answer: D: Freckle 
Explanation: Ans. is 'd' i.e., Freckle