A 20-year-old man underwent surgery to remove a tumor in his…

A 20-yeаr-оld mаn underwent surgery tо remоve а tumor in his cerebellum 6 months ago. He started experiencing increased standing postural sway (low frequency and high amplitude) in all directions and without a preferred direction shortly after surgery, and the symptom is getting worse. He also demonstrates an eye movement disorder called Nystagmus. Which area of the cerebellum was most likely affected by the tumor?