Q. A 35-year-old man comes to the clinic because of a 2-day history of visual problems and an increased tendency to fall. He described his visual problem as seeing 2 images of everything. He has no chronic illness, but he had bloody diarrhea 10 days ago. His vital signs are within normal limits. On physical examination, the patient has weakness in the medial and upward gaze in the right eye, he suffers from incoordinate movement while walking, and there is a loss of deep tendon reflex in both lower extremities. He fails to do the finger-to-nose test appropriately. Sensations are intact all over his body. Which of the hollering can be consistent with this condition?