What Would Be a Primary Advantage of Passive Immunity with Diseases

Multiple Choice

What would be a primary advantage of passive immunity with diseases such as tetanus or botulism?

A) Time. You can quickly neutralize the toxin with a passive administration of antibodies to save the patient's life during the period it takes for their own active immune response to occur.
B) Cost. It's much cheaper to administer a dose of antibodies harvested from the serum of an actively immunized animal or human than it is to administer a vaccine.
C) Safety of delivery. It's far safer to administer a dose of antibodies harvested from the serum of an actively immunized animal or human than it is to administer a vaccine.
D) Handling of treatment. It's difficult to keep vaccines stored properly to keep their potency, especially in countries without adequate refrigeration facilities. It's much easier to keep antibodies stable, even in extremes of heat and humidity.
E) Recovery time. Even if the person actually develops the disease, the antibodies that are delivered in passive immunity will actively seek out and destroy the pathogen, facilitating a quicker recovery.