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: ENT
In Esophageal speech, the dynamic component is- 
Select and explain. 
A. Buccal segment, B. Pharyngo- esophageal segment, C. Trachea, D. Pharynx
B: Pharyngo- esophageal segment
Answer: B: Pharyngo- esophageal segment 
Explanation: None