Which of the Following Is a Key Application of the Serratus

Which of the following is a key application of the serratus anterior muscle?

A) It is used strongly in pulling the clavicle anteriorly and inferiorly toward the sternum.
B) It is used in rotating the medial border of the scapula down and back toward the spinal column.
C) It is used strenuously when lifting with the hands, as in picking up a heavy wheelbarrow.
D) It is used strongly in doing push-ups, especially in the last 5 to 10 degrees of motion.