When Teaching a Patient with Raynaud's Phenomenon How to Manage

When teaching a patient with Raynaud's phenomenon how to manage the condition,which of the following behaviours by the patient indicates that the teaching has been effective?

A) The patient places the hands in hot water when they turn pale.
B) The patient exercises indoors during the winter months.
C) The patient takes pseudoephedrine (Sudafed) for cold symptoms.
D) The patient avoids the use of aspirin and NSAIDs.