A nurse is performing a neurological examination on a client as part of a complete physical assessment. The nurse should identify that cranial nerve XI is intact when the client performs which of the following actions?

A. Identifying a sour taste tests cranial nerves VII (facial) and IX (glossopharyngeal). B. Cranial nerve XI (the spinal accessory nerve) controls the muscles involved in shoulder shrugging and head turning. C. Frowning symmetrically assesses the facial nerve (VII). D. Sticking out the tongue assesses the hypoglossal nerve (XII).