The Nurse Is Administrating Eardrops That Have Been Refrigerated

The nurse is administrating eardrops that have been refrigerated. Which action by the nurse is correct before administering the drops?

A) Leave the drops in the refrigerator until use.
B) Heat the chilled solution for 10 seconds in the microwave.
C) Soak the bottle for 60 seconds in a container of very hot water.
D) Take the drops out of the refrigerator 1 hour before the dose is due.