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
Boundaries of upper triangular space include all except - 
Select and explain. 
A. Teres minor, B. Teres major, C. Subscapularis, D. Triceps
C: Subscapularis
Answer: C: Subscapularis 
Explanation: -        Boundaries of upper triangular space

   Medial- Teres minor
   Lateral- Long head of triceps
   Inferior- Teres major
   Content- circumflex scapular artery