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
The anterior triangle occupy the side of the neck in front of sternomastoid muscle. Each triangle presents boundaries in front 
Select and explain. 
A. Anterior median line of the neck extending from symphysis menti to supra sternal notch, B. The midline of the neck, C. Midline of the neck upto the sternoclavicular joint, D. Posterior border of thyroid gland
A: Anterior median line of the neck extending from symphysis menti to supra sternal notch
Answer: A: Anterior median line of the neck extending from symphysis menti to supra sternal notch 
Explanation: None