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
Muscle which broadens and flattens the tongue: 
Select and explain. 
A. Superior longitudinal, B. Inferior longitudinal, C. Verticalis., D. Transverse.
C: Verticalis.
Answer: C: Verticalis. 
Explanation: None