Answer:
The missing options are:
A. Longus coli
B. Longus capitis
C. Sternocleidomastoid
D. Supraspinatus
The answer is C. Sternocleidomastoid.
Step-by-step explanation:
The sternocleidomastoid is the muscle that should be stretched because it is the one that was affected due to an inappropriate position while performing the pulling. The sternocleidomastoid produces cervical rotation, cervical flexion, the elevation of the sternum, and assists in forced inhalation, none of these actions should be done during the pulling assesment if they are done the client's head will probably protrude.