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
While taking final impression tray should be seated first: 
Select and explain. 
A. Anteriorly, B. Posteriorly, C. Anteriorly or posteriorly depending upon operators choice, D. Anteriorly and posteriorly simultaneously
A: Anteriorly
Answer: A: Anteriorly 
Explanation: None