<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 2-year-old girl is brought to the doctor by her mother with persistent scratching of her perianal region. The patients mother says that symptoms started 3 days ago and have progressively worsened until she is nearly continuously scratching even in public places. She says that the scratching is worse at night and disturbs her sleep. An anal swab and staining with lactophenol cotton blue reveal findings in the image see image. Which of the following is the organism most likely responsible for this patients condition?? A: Enterobius vermicularis, B: Wuchereria bancrofti, C: Taenia saginata, D: Ancylostoma duodenale, E: Ascaris lumbricoides,  <response>: This is a clinical vignette describing a 2-year-old girl with perianal itching and scratching that has progressively worsened over the past 3 days. The history and anal swab findings are consistent with pinworm infection caused by Enterobius vermicularis. Wuchereria bancrofti causes lymphatic filariasis and does not cause perianal itching. Taenia saginata is a tapeworm that causes intestinal infection but not perianal itching. Ancylostoma duodenale is a hookworm that typically causes gastrointestinal symptoms. Ascaris lumbricoides is a roundworm that may cause abdominal symptoms but not isolated perianal itching.Therefore, based on the clinical presentation and microscopic findings, the organism most likely responsible for this patients condition is Enterobius vermicularis.A: Enterobius vermicularis 