The Patient Says, "I Think I Am Allergic to Something

The patient says, "I think I am allergic to something in my house. I feel better when I am away for a few days." What should the nurse suggest?

A) "You might want to keep your dog outside."
B) "You might want to consider having allergy testing done."
C) "You should remove dust by vacuuming your house every day and getting rid of your drapes and decorative pillows."
D) "You should consider having your home professionally cleaned."