You have been called for a 56-year-old female complaining of chest pain. She informs you that she takes nitroglycerin and asks you to get it off of the top of her refrigerator. You find it is a clear glass jar hand labeled "nitroglycerin." Which of the following is the most appropriate response?

A) "You should keep your nitro in the refrigerator since it will keep longer in the cold."
B) "It is best to keep the nitro in a dark container since light will inactivate it."
C) "The heat from the refrigerator will cause the nitroglycerin to lose its effectiveness."
D) "Having the nitro on top of the refrigerator may make it difficult for you to reach it in an emergency."

B