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
Oocyst of toxoplasma is found in : 
Select and explain. 
A. Cat, B. Dog, C. Mosquito, D. Cow
A: Cat
Answer: A: Cat 
Explanation: Ans. is 'a' i.e. Cat Toxoplasma can infect wide variety of animals but the only host under which it undergoes sexual division and produce infectious oocyst which are excreted in the feces is Cat.