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
Which among is not a primary skin lesion of: 
Select and explain. 
A. Plaque, B. Macule, C. Abscess, D. None
C: Abscess
Answer: C: Abscess 
Explanation: C. i.e. Abscess