What Action Should a Nurse Implement to Initiate the Chvostek

What action should a nurse implement to initiate the Chvostek sign?

A) Ask the patient to grimace and note if the facial response is symmetrical.
B) Inflate a blood pressure cuff to the systolic level and watch for a carpopedal spasm.
C) Tap the face over the facial nerve and watch for a spasm of the facial muscle.
D) Check the pupillary response to light and determine whether the pupil accommodates and reacts.