<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 12-year-old boy presents to the emergency department with severe abdominal pain and nausea. He first began to have diffuse abdominal pain 15 hours prior to presentation. Since then, the pain has moved to the right lower quadrant. On physical exam he has tenderness to light palpation with rebound tenderness. Lifting his right leg causes severe right lower quadrant pain. Which of the following nerves roots was most likely responsible for the initial diffuse pain felt by this patient?? A: C6, B: T4, C: T7, D: T10, E: L1,  <response>: Based on the description, this is a case of acute appendicitis in a 12-year-old boy. He initially presented with diffuse abdominal pain that later localized to the right lower quadrant. This presentation is classic for appendicitis. The key to answering this question is knowing which nerve roots supply sensation to the various abdominal quadrants. The initial diffuse pain suggests involvement of a nerve root supplying a broad region of the abdomen. T10 supplies the umbilical region, so it is the most likely cause of the initial diffuse pain before it localized to the right lower quadrant which is supplied by T12.D: T10 