<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 50-year-old HIV-positive male presents to the ER with a two-day history of fever and hemoptysis. Chest radiograph shows a fibrocavitary lesion in the right middle lobe. Biopsy of the afflicted area demonstrates septate hyphae that branch at acute angles. Which of the following is the most likely causal organism?? A: Mycobacterium tuberculosis, B: Candida albicans, C: Pneumocystis jeroveci, D: Aspergillus fumigatus, E: Naegleria fowleri,  <response>: This is a patient with advanced HIVAIDS presenting with symptoms and imaging findings concerning for a pulmonary infection. The description of septate, acute angle branching hyphae on biopsy is characteristic of Aspergillus species. Aspergillus fumigatus is the most common cause of invasive aspergillosis. Mycobacterium tuberculosis, Candida albicans, and Pneumocystis jiroveci can cause pulmonary infections in immunocompromised hosts but do not present with septate hyphae. Naegleria fowleri causes primary amebic meningoencephalitis but not pulmonary infection. Therefore, the most likely answer is Aspergillus fumigatus.D: Aspergillus fumigatus 