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
Indirect retention is designed to 
Select and explain. 
A. Stabilize tooth borne RPD, B. Engage an undercut area of the abutment tooth, C. Resist tissue ward movement of an extension base partial denture, D. Resist dislodgement of an extension base partial denture in occlusal direction
D: Resist dislodgement of an extension base partial denture in occlusal direction
Answer: D: Resist dislodgement of an extension base partial denture in occlusal direction 
Explanation: None