This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
Definitive host for Echinococcus granulosus is: 
Select and explain. 
A. Man, B. Dog, C. Cattle, D. Pig
B: Dog
Answer: B: Dog 
Explanation: Ans: B (Dog) Ref : Parija SC. Textbook of Medical Parasitology. 3rd Edition. London: John Wiley & Sons: 2004. Pg 221Explanation:Echinococcus GranulosusCauses cystic echinococcosis or hydatid disease in man and other herbivorous animals.Adult tape worms are found attached to the wall of the intestinal mucosa of dogs and wild canines - Definitive hosts.Larval stage is found in humans and other herbivorous animals - Intermediate hosts.Man is an accidental intermediate host.Man acquires the infection by ingestion of food contaminated with infected dog faeces or while handling infected dogs.