question: Q:A 26-year-old woman comes to the physician because of a progressive swelling in her mouth that she first noticed 5 years ago. Initially, the swelling was asymptomatic but has now caused some difficulty while chewing food for the past month. She has no pain. She has not undergone any dental procedures in the past 5 years. She has bronchial asthma. Her only medication is an albuterol inhaler. She appears healthy. Her temperature is 37°C (98.6°F), pulse is 70/min, and blood pressure is 110/70 mm Hg. Examination shows a 1.5-cm smooth, unilobular, bony hard, nontender mass in the midline of the hard palate. There is no cervical or submandibular lymphadenopathy. The remainder of the examination shows no abnormalities. Which of the following is the most likely diagnosis?? 
  {'A': 'Palatal pleomorphic adenoma', 'B': 'Necrotizing sialometaplasia', 'C': 'Nasopalatine duct cyst', 'D': 'Palatal abscess', 'E': 'Torus palatinus\n"'},