Final answer:
The nurse provides presence by remaining with the patient during a frightening procedure, offering emotional support and comfort. Hence, option (b) is correct.
Step-by-step explanation:
The behavior that demonstrates that the nurse provides presence to a patient is option b) the nurse remains with the patient throughout a procedure that the patient has identified as frightening. Providing presence means being with the patient, offering emotional support, and enhancing the patient's feeling of safety and comfort.
This can be especially important during procedures such as the direct supervision of a registered nurse when providing dialysis treatments, or any situation that may cause anxiety, such as during recovery after surgery where the surgeon, nurse, and anesthesia professional might discuss key concerns for the patient's care.