Which Are Actions of the Middle Scalene

Which are actions of the middle scalene?

A) elevation of the first and second ribs at the sternocostal and costospinal joints
B) elevation of the first rib at the sternocostal and costospinal joints and flexion of the neck at the spinal joints
C) elevation of the first rib at the sternocostal and costospinal joints and extension of the neck at the spinal joints
D) elevation of the second rib at the sternocostal and costospinal joints and extension of the neck at the spinal joints