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: Surgery
The plunging ranula is so called because of 
Select and explain. 
A. Its size, B. Lifting of tongue, C. Extension through mylohyoid, D. Involvement of lingual nerve
C: Extension through mylohyoid
Answer: C: Extension through mylohyoid 
Explanation: None