The glenoid cavity of the scapula

Q-8. The glenoid cavity of the scapula is rotated upward by which of the following muscles
a) Levator scapulae
b) Serratus anterior
c) Rhomboid minor
d) Trapezius

Answer- b and d
Explanation:
The serratus anterior and the trapezius increase the range of the abduction considerably up to 180 degrees by rotating the scapula so that the glenoid cavity faces upwards.