Final answer:
The best way for a health assistant to confirm the identity of a patient is to check the patient's name band (option C).
Step-by-step explanation:
The best way for a health assistant to confirm the identity of a patient is to check the patient's name band (option C). The patient's name band is a wristband that is typically provided upon admission to a healthcare facility. It contains the patient's name, unique identification number, and other relevant information. By checking the name band, the health assistant can ensure that they are providing care to the correct patient and avoid any potential mix-ups or errors.