A 52-year-old man from Delhi presents to the neurology clinic with a 3-day history of sudden-onset drooping of the right side of his face, inability to close his right eye, and loss of taste on the anterior two-thirds of the tongue. He denies hearing loss, vertigo, or vesicles in the ear canal. Examination confirms right-sided facial weakness affecting all muscles of facial expression, hyperacusis on the right, and impaired taste sensation. What is the most likely cranial nerve involved?