<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 55-year-old man comes to the physician because of fever, fatigue, dry cough, headache, and myalgia over the past week. Two days ago, he developed several painful oral lesions and difficulty swallowing. He underwent kidney transplantation 3 years ago. His temperature is 38.2C 100.7F. Physical examination shows bilateral rales, hepatosplenomegaly, and multiple 12 cm ulcerative lesions with raised borders in the oral mucosa. A photomicrograph of a liver biopsy specimen is shown. Which of the following is the most likely causal pathogen?? A: Aspergillus fumigatus, B: Blastomyces dermatitidis, C: Histoplasma capsulatum, D: Paracoccidioides brasiliensis, E: Coccidioides immitis,  <response>: This is a clinical vignette describing a 55-year-old immunocompromised man with fever, respiratory symptoms, and oral ulcers. The key findings are:- Immunosuppressed due to kidney transplant 3 years ago- Fever, cough, fatigue, myalgia - suggestive of an infectious process- Oral ulcers - indicate likely disseminated infection - Hepatosplenomegaly - suggests a systemic infection- Liver biopsy showing yeast forms - indicates a fungal infectionBased on the clinical presentation and biopsy findings, this patient most likely has a disseminated fungal infection. The main suspects are Histoplasma, Blastomyces, Coccidioides, and Paracoccidioides. Aspergillus is unlikely as it more commonly causes pulmonary disease and does not form yeast in tissues.C: Histoplasma capsulatum 