The nurse is assisting a patient with the placement of a urinal. The patient tells the nurse, I'll call you when I'm done. What is the nurse's best response?

a) All right, my name is Robin, and I'll be right across the hall. Just call me when you're finished.
b) Fine. Recap the urinal, hang it on your side rail, and use your call light to let me know you're finished.
c) I'll check on you as soon as I get a chance.
d) I'll be back in 15 minutes. That should be enough time for you to finish up.