This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics, Subject name: Pathology
Disease due to microdeletion of chromosome 15 is? 
Select and explain. 
A. WAGR syndrome, B. DiGeorge syndrome, C. Prader villi syndrome, D. Charcot-Marie-Tooth syndrome
C: Prader villi syndrome
Answer: C: Prader villi syndrome 
Explanation: ANSWER: (C) Prader villi syndromeREF: Harrison's 18th ed ch: 62Indirect repeat Pathology 2012 Session 1 (see table of microdeletion syndromes)