<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 25-year-old man presents to the clinic with a midline swelling in his neck. He is unsure about when it appeared. He denies any difficulty with swallowing or hoarseness. His past medical history is insignificant. On physical examination, there is a 1 cm x 2 cm firm mildly tender nodule on the anterior midline aspect of the neck which moves with deglutition and elevates with protrusion of the tongue. Which of the following is the most likely embryologic origin of the nodule in this patient?? A: The branchial cleft, B: 1st and 2nd pharyngeal arch, C: 4th pharyngeal arch, D: 4th pharyngeal pouch, E: Midline endoderm of the pharynx,  <response>: This is a question about identifying the embryologic origin of a midline neck mass in a young adult male. The location, appearance, and physical exam findings of a firm, mobile nodule that elevates with tongue protrusion are classic for a thyroglossal duct cyst. These cysts arise from remnants of the thyroglossal duct, which forms during weeks 4-7 of embryonic development from the foramen cecum of the tongue to the future thyroid gland location. E: Midline endoderm of the pharynx 