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: Pathology
Heck's disease is: 
Select and explain. 
A. Multiple discrete papule on labial mucosa., B. Focal epithelial hyperpalasia., C. Both., D. None.
C: Both.
Answer: C: Both. 
Explanation: None