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: Dental
A flat discoloration on the skin about 1 cm is called 
Select and explain. 
A. Papule, B. Macule, C. Plaque, D. Boil
B: Macule
Answer: B: Macule 
Explanation: None