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: Anatomy
Lower border of pharynx is at the level of (Extent of pharynx is upto) ? 
Select and explain. 
A. C2, B. C3, C. C4, D. C6
D: C6
Answer: D: C6 
Explanation: Ans. is 'd' i.e., C6 Pharynx is a musculomembranous tube that extands from the base of skull to the level of the sixth cervical veebra, where it is continuous with esophagus. Pharynx is subdivided into :? I) Nasopharynx :- Pa of the pharynx above the soft palate, i.e. from the base of skull to the soft palate? 2) Oropharynx :- Extends from the soft palate superiorly to the level of hyoid inferiorly. 3) Hypopharynx :- The hypopharynx includes that poion of the pharynx below the level of the hyoid.