Answer: none of those listed
Explanation:
Antitoxin can be derived from either human (e.g., tetanus immune globulin) or animal (usually equine) sources (e.g., diphtheria and botulism antitoxin). Antitoxins are used to confer passive immunity and for treatment.
It is (B) it is strange but it does weaken the immune system
If your getting an iv of pure water and it goes into your veins their is a possibility it would lead to death.
Phagocytosis which is the devourment of foreign particles.