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: Social & Preventive Medicine
Koplik spots of measles seen near 
Select and explain. 
A. Upper 2nd molar, B. Lower 2nd molar, C. Lower 2nd premolar, D. Upper 2nd premolar
B: Lower 2nd molar
Answer: B: Lower 2nd molar 
Explanation: None