Which Is a True Statement Concerning the Administration of Topical

Which is a true statement concerning the administration of topical nitroglycerin ointment?

A) The ointment should be applied on the chest over the heart.
B) The ointment should be used only in the case of a mild angina episode.
C) The old ointment should be removed before the new ointment is applied.
D) The ointment should be massaged gently into the skin and then covered with plastic wrap.