<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 10-year-old boy presents to the emergency department with a swollen and painful elbow after accidentally bumping his arm into the kitchen table. His mom notes that he seems to bruise and bleed easily, but this is the first time he has had a swollen joint. She also remembers that her uncle had a bleeding disorder, but cannot remember the diagnosis. Physical exam reveals a warm and tender elbow joint, but is otherwise unremarkable. Based on clinical suspicion, a bleeding panel is ordered with the following findings:Bleeding time: 3 minutesProthrombin time PT: 13 secondsPartial thromboplastin time PTT: 54 secondsWhich of the following treatments would most likely be effective in preventing further bleeding episodes for this patient?? A: Factor VIII replacement, B: Intravenous immunoglobulin, C: Platelet administration, D: Vitamin K supplementation, E: von Williband factor replacement,  <response>: Based on the information provided in the question stem, this appears to be a case of hemophilia A in a young boy. The key findings are:- 10-year-old boy with swollen and painful elbow after minor trauma, suggesting increased bleeding tendency- Family history of a bleeding disorder in a maternal uncle, suggesting inherited disorder- Normal PT but prolonged PTT, indicating an isolated intrinsic pathway defect- All of these point towards a diagnosis of hemophilia A, which is caused by factor VIII deficiency. The treatment for hemophilia A is factor VIII replacement. Therefore, the correct answer should be the one mentioning factor VIII replacement.A: Factor VIII replacement 