An antiserum for a snake toxin may be produced by injecting the toxin into a horse. A few weeks later, blood plasma is collected from the horse and used to prepare the antiserum. This antiserum is then given to a person who has been bitten by the same species of snake. Which type of immunity is produced by the use of this antiserum?
- Aartificial active
- Bartificial passive
- Cnatural active
- Dnatural passive