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
[{'content': 'Larva found in muscle is - \nSelect and explain. \nA. Trichinella spiralis, B. Ancylostoma duodenale, C. Trichuris trichura, D. Enterobius vermicularis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Larvae of trichinella spiralis becomes encysted in the striated muscle fiber and at the time of encystment measures 1mm in length by 36 micro metre in diameter. Larva in cyst is coiled and hence the name spiralis. Ref : panikers textbook of Medical parasitology 8th edition page 171', 'role': 'assistant'}]