This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Surfaces and Grooves, Subject name: Anatomy
[{'content': 'Boundary of triangle of auscultation is formed by all EXCEPT \nSelect and explain. \nA. Scapula, B. Trapezius, C. Serratus anterior, D. Latissimus dorsi', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Triangle of auscultation helps in hearing breath sounds clearly and splash sound of food entering stomach. The triangle is formed by: Trapezius - medial border, Lattismus Dorsii - lower border and Scapula- lateral border Fig. Triangle of auscultation', 'role': 'assistant'}]