Final answer:
The center for the anterior oblique of the SC joint is the subscapular fossa on the scapula. It is below the superior angle of the scapula.
Step-by-step explanation:
The center for the anterior oblique of the SC joint is the subscapular fossa, which is a broad depression located on the anterior (deep) surface of the scapula. This is where the tendon of the subscapularis muscle inserts and contributes to the stabilization of the shoulder joint. The subscapular fossa is positioned below the superior angle of the scapula, which is the corner of the scapula between the superior and medial borders.