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
A flat, circumscribed discolouration of skin or mucosa
that may vary in size and shape is referred to as 
Select and explain. 
A. Epulis, B. Macule, C. Nodule, D. Papule
B: Macule
Answer: B: Macule 
Explanation: None