The nurse continues a neurologic assessment of the cranial nerve XI (spinal accessory) for a client as seen in the picture. Which instruction should the nurse give the client to complete this assessment?

A. Shrug shoulders against resistance: This is the correct technique to assess cranial nerve XI (spinal accessory). The nerve controls the trapezius and sternocleidomastoid muscles, which are evaluated by testing shoulder shrug and head turn strength against resistance.B. Turn head from side to side: Although head turning tests part of CN XI function (sternocleidomastoid), it is not as complete without also assessing the trapezius via shoulder shrug. It’s usually performed along with, not instead of, shoulder resistance.C. Raise both arms overhead. This tests for upper limb muscle strength and range of motion, not cranial nerve function. It involves deltoid and upper back muscles but does not isolate spinal accessory nerve function.D. Stand up slowly with eyes closed. This is part of the Romberg test, used to assess proprioception and balance related to cerebellar or vestibular function, not cranial nerve XI.