<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 59-year-old woman comes to the physician because of worsening shortness of breath for the past two weeks. Physical examination shows decreased breath sounds at both lung bases. The abdomen is distended and there is shifting dullness with a positive fluid wave. Ultrasound of the abdomen shows a large collection of peritoneal fluid and a hypoechoic mass involving the left ovary. Microscopic examination of a biopsy specimen from the ovarian mass shows clusters of spindle-shaped cells. Which of the following is the most likely diagnosis?? A: Serous cystadenoma, B: Endometrioma, C: Ovarian thecoma, D: Dermoid cyst, E: Ovarian fibroma,  <response>: This is a clinical vignette describing a 59-year-old woman with worsening shortness of breath, decreased breath sounds, abdominal distension, shifting dullness, and a peritoneal fluid collection with a left ovarian mass on ultrasound. Biopsy of the ovarian mass showed spindle cell clusters. The key findings are the ovarian mass with spindle cell histology and ascites. Ovarian fibromas are benign ovarian tumors composed of spindle cells. They can be associated with Meigs syndrome, which consists of ovarian fibroma, ascites, and pleural effusion. Of the choices given, ovarian fibroma is the most likely diagnosis based on the clinical and pathological findings described.E: Ovarian fibroma 