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
The difficulty in constructing C.D in a bell's palsy patient is 
Select and explain. 
A. Impression taking, B. Teeth setting, C. Border moulding, D. Jaw relations
D: Jaw relations
Answer: D: Jaw relations 
Explanation: None