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
All of the following are digastrics, except? 
Select and explain. 
A. Muscle fibres in the ligament of Treitz, B. Omohyoid, C. Occipitofrontalis, D. Sternocleidomastoid
D: Sternocleidomastoid
Answer: D: Sternocleidomastoid 
Explanation: None