input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A known HIV patient on anti - retroviral therapy presented with diarrhea of six months duration. Stoll microscopy was done in which 10-30 micrometer cysts were seen, Kinyoun stain was positive. What is the most likely diagnosis?   (A) Cystoisospora   (B) Cryptosporidium   (C) Balantidium coli   (D) Strongyloides
output: ['(A) Cystoisospora <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Cystoisospora  (B) Cryptosporidium  (C) Balantidium coli  (D) Strongyloides <> possible answers', '  A known HIV patient on anti - retroviral therapy presented with diarrhea of six months duration. Stoll microscopy was done in which 10-30 micrometer cysts were seen, Kinyoun stain was positive. What is the most likely diagnosis? <> context']