This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Antisera are prepared from 
Select and explain. 
A. Guinea pig, B. Rabbit, C. Rat, D. Horse
D: Horse
Answer: D: Horse 
Explanation: AntiseraIs a material prepared in animalsPassive immunization was achieved by the administration of antisera or antitoxins prepared from horsesAdministration of antisera give rise to serum sickness and anaphylactic shock(Refer: K. Park's Textbook of Preventive and Social Medicine, 24th edition, pg no:112)