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: Medicine
The number of cafe au lait macules as one of the diagnostic criteria for adult neurofibromatosis is 
Select and explain. 
A. 1, B. 2, C. 4, D. 6
D: 6
Answer: D: 6 
Explanation: Answer- D. 6l.5 cm orlarger in individuals past pubey0.5 cm or larger in individuals before pubey.