A nurse is assessing a client's cranial nerves as part of a neurological examination. Which action should the nurse take to assess cranial nerve III?

A. Observing for facial symmetry assesses cranial nerves VII (facial nerve), not cranial nerve III. B. Cranial nerve III (oculomotor nerve) is responsible for eye movement and pupillary response, making checking the pupillary response to light the correct action. C. Testing visual acuity primarily assesses cranial nerve II (optic nerve), not cranial nerve III. D. Eliciting the gag reflex is associated with cranial nerves IX (glossopharyngeal) and X (vagus), not cranial nerve III.