Your Allergies Are So Bad Every Year That You Finally

Your allergies are so bad every year that you finally decide that you are going to go for desensitization treatments. These treatments 

A) involve getting concentrated shots of allergen that causes the immune system to produce IgM against it. When exposed to the allergen again, the IgM antibodies bind to it, coating it and preventing it from cross-linking bound IgE on T cells.
B) involve you sitting in a room into which ragweed pollen will be introduced via the air system. This will force your immune system to recognize the allergen as "friendly" and stop reacting to it by causing basophils to degranulate.
C) include receiving increasingly high doses of antihistamine so that a maximum level is reached on your blood stream. The antihistamines will neutralize the allergen by binding to it before it has the opportunity to bind to basophil-bound IgE.
D) involve getting shots of very dilute allergen that causes the immune system to produce IgG against it. When exposed to the allergen again, the IgG antibodies bind to it, coating it and preventing it from cross-linking bound IgE on mast cells or basophils.
E) involves recombinant humanized monoclonal antibodies (rhuMabs) . These will bind to and neutralize the IgA made on on first exposure to ragweed pollen, and prevent your B cells from undergoing class switching.