This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: mycology, Subject name: Microbiology
[{'content': 'All causes brain lesions except - rpt \nSelect and explain. \nA. Giardiasis, B. Tuberculosis, C. Cysticercosis, D. Bacteroids', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Guardia lamblia causes giardiasis. the parasite attaches itself to the epithelial surface of duodenum and jejunum and causes disturbance of intestinal function leading to malabsoption of fat. The patient may complaints of persistent loosened of bowel and mild steatorrhoea. REF:Baveja textbook of microbiology 3rd edition.', 'role': 'assistant'}]