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
On both sides submental triangle is bounded by: 
Select and explain. 
A. Hyoid bone, B. Anterior digastric, C. Posterior digastric, D. Mylohyoid
B: Anterior digastric
Answer: B: Anterior digastric 
Explanation: Submental triangle is bounded by anterior belly of digastric (laterally), midline of the neck b/w the mandible & the hyoid bone (medially) & base of hyoid bone.Mylohyoid muscle is at the floor & submental lymph nodes are the content.