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': 'Loeffler&;s syndrome occurs in all except \nSelect and explain. \nA. Toxocara, B. Stongyloides, C. Ascaris, D. Giardia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: *Giardia lamblia -intestinal flagellate,causing intestinal infection. *Loeffler syndrome- inflammatory and hypersensitivity reaction in the lungs lead to cough ,fever, dyspnoea and eosinophilia *toxocara causes visceral larva migrans . ref:Baveja textbook of parasitology 3rd edition.', 'role': 'assistant'}]