<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 48-year-old man comes to the physician because of a skin lesion on his nose and in his mouth. The lesions have been gradually increasing in size and are not painful or pruritic. Two months ago, he was treated for esophageal candidiasis. Physical examination shows one pinkish-brown papule on the right wing of the nose and two similar nodular lesions on the hard palate and buccal mucosa. A biopsy of one of the lesions shows spindle-shaped endothelial cells and infiltration of lymphocytes, plasma cells, and macrophages. Which of the following is the most likely causal organism of this patients condition?? A: Polyomavirus, B: Poxvirus, C: Epstein-Barr virus, D: Human herpes virus 8, E: Mycobacterium avium complex,  <response>: Based on the description, this patient has gradually enlarging skin and mucosal lesions that are not itchy or painful. He also has a history of esophageal candidiasis 2 months ago. Biopsy shows spindle cells and inflammatory cell infiltration. The history of esophageal candidiasis suggests an immunocompromised state. The biopsy findings are consistent with Kaposis sarcoma, which presents as vascular skin and mucosal lesions. Kaposis sarcoma is caused by human herpesvirus 8 HHV-8 infection.Therefore, the most likely causal organism is human herpesvirus 8 HHV-8.D: Human herpes virus 8 