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
Tubercle of zukerkandle is seen on 
Select and explain. 
A. MB on upper and lower primary 1st molar, B. MB on upper and lower permanent 1st molar, C. MB on upper Primary 1st molar only, D. MB on lower primary 1st molar only
A: MB on upper and lower primary 1st molar
Answer: A: MB on upper and lower primary 1st molar 
Explanation: None