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
Pharyngeal Pseudosulcus is seen secondary to- 
Select and explain. 
A. Vocal Abuse, B. Laryngopharyngeal Reflux, C. Tuberculosis, D. Corticosteroid usage
B: Laryngopharyngeal Reflux
Answer: B: Laryngopharyngeal Reflux 
Explanation: Vocal Sulcus/Laryngeal Sulcus 
It is a groove along the mucosa and can be classified into three types:
Laryngeal sulcus