A 42-year-old welder comes to the emergency room because he…

A 42-year-old welder comes to the emergency room because he has noticed drooping in his face and a constantly watering right eye. He had an upper respiratory infection 2 weeks before these symptoms started. On physical examination, his pupils are equal, round, and reactive to light and accommodation; the right side of his face droops both above and below the forehead when he tries to smile; and he is unable to close his right eye completely. There is no tongue deviation. You diagnose him with Bell’s palsy. Which cranial nerve is affected in this condition?