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 mucostatic impression for a prosthesis is taken for which of the following cases 
Select and explain. 
A. Lower RPD with Kennedy I classification, B. Lower RPD with Kennedy II Classification, C. Upper RPD with Kennedy IV classification, D. Full upper and lower denture
C: Upper RPD with Kennedy IV classification
Answer: C: Upper RPD with Kennedy IV classification 
Explanation: None