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
During recording of PPS, face is titled down 30 degrees to touch the sternum: 
Select and explain. 
A. To activate the muscles of palate & pharynx, B. To activate the muscles of soft palate only, C. To prevent flow of material to throat, D. Help in sucking & swallowing
B: To activate the muscles of soft palate only
Answer: B: To activate the muscles of soft palate only 
Explanation: None