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: Dental
Which of the following is/are not the cause of hypopigmentation – 
Select and explain. 
A. Leprosy, B. Pinta, C. Syphilis, D. Pytriasis alba
C: Syphilis
Answer: C: Syphilis 
Explanation: Leprosy, Pinta, Pytriasis alba and Pytriasis versicolor cause hypopigmentation.