<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 55-year-old woman comes to the physician because of a 2-week history of painful swelling on the right side of her face. The pain worsens when she eats. Examination of the face shows a right-sided, firm swelling that is tender to palpation. Oral examination shows no abnormalities. Ultrasonography shows a stone located in a duct that runs anterior to the masseter muscle and passes through the buccinator muscle. Sialoendoscopy is performed to remove the stone. At which of the following sites is the endoscope most likely to be inserted during the procedure?? A: Lateral to the superior labial frenulum, B: Lateral to the lingual frenulum, C: Lateral to the second upper molar tooth, D: Into the floor of the mouth, E: Into the mandibular foramen,  <response>: This is a clinical case scenario describing a 55-year-old woman with a 2-week history of painful facial swelling on the right side that worsens when eating. The description and location of the swelling along with the ultrasound findings indicate a salivary duct stone, likely in the parotid Stensens duct. Sialoendoscopy is a procedure used to visualize the salivary duct system and remove obstructions like stones. For a parotid duct stone, the endoscope would need to be inserted into the opening of the parotid Stensens duct, which is located opposite the 2nd upper molar tooth.C: Lateral to the second upper molar tooth 