Of the Following Statements About Nitrates,which Is the Most Appropriate

Of the following statements about nitrates,which is the most appropriate to share with a client before discharge?

A) "Prescriptions should be filled every 6 to 9 months."
B) "The nitrates degrade with heat,light,and moisture."
C) "You may use any application paper with any form of ointment."
D) "Sublingual potency is assessed by flushing of the face and postural hypotension."