The Wife of a Patient Who Has Been Diagnosed with Depression

The wife of a patient who has been diagnosed with depression calls the office and says,"It's been an entire week since he started that new medicine for his depression,and there's no change! What's wrong with him?" What is the nurse's best response?

A) "The medication may not be effective for him.He may need to try another type."
B) "It may take up to 6 weeks to notice any therapeutic effects.Let's wait a little longer to see how he does."
C) "It sounds like the dose is not high enough.I'll check about increasing the dosage."
D) "Some patients never recover from depression.He may not respond to this therapy."