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': 'Amastigote forms" are seen in - \nSelect and explain. \nA. Leishmania donovani, B. Toxoplasma gondi, C. Leishmania major, D. Entamoeba', 'role': 'user'}, {'content': 'Answer: A \nExplanation: amastigote aflagellar stage Present in the cells of reticuloendothelial system Non motile round or oval body (refer pgno:38 baveja 3 rd edition)', 'role': 'assistant'}]