<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 41-year-old HIV-positive male presents to the ER with a 4-day history of headaches and nuchal rigidity. A lumbar puncture shows an increase in CSF protein and a decrease in CSF glucose. When stained with India ink, light microscopy of the patients CSF reveals encapsulated yeast with narrow-based buds. Assuming a single pathogenic organism is responsible for this patients symptoms, which of the following diagnostic test results would also be expected in this patient?? A: Cotton-wool spots on funduscopic exam, B: Ring-enhancing lesions on CT imaging, C: Latex agglutination of CSF, D: Acid-fast cysts in stool, E: Frontotemporal atrophy on MRI,  <response>: Based on the description in the question stem, this patient likely has cryptococcal meningitis given the presence of encapsulated yeast with narrow-based buds seen on India ink staining of the CSF. Cryptococcus is a fungal infection that can cause meningitis in immunocompromised patients like those with HIVAIDS. The expected diagnostic findings in cryptococcal meningitis include:- Increased CSF protein and decreased CSF glucose - seen in this patient- Positive India ink stain - seen in this patient - Positive cryptococcal antigen test on CSFSo the answer should be a test that would detect cryptococcal antigen in the CSF.C: Latex agglutination of CSF 