The patient's posture is stooped and he walks with shuffling steps. Starting, stopping, and turning are difficult. Which gait pattern is likely?

A. Steppage: This gait involves lifting the knee high to avoid dragging the toes, commonly seen in patients with peroneal nerve injury. It is a compensatory movement for weakness in dorsiflexion rather than a shuffling or stooped posture. It does not involve difficulty with starting or stopping. B. Cerebellar ataxia: This is a staggering, wide-based gait where the patient appears uncoordinated and may sway significantly from side to side. It is caused by cerebellar dysfunction and often includes a positive Romberg test. It lacks the shuffling characteristics associated with basal ganglia disorders. C. Spastic hemiparesis: This gait involves one arm held immobile against the body, while the affected leg is stiff and dragged in a semi-circle. It typically follows a stroke and affects only one side of the body. It does not present with the symmetrical shuffling steps seen here. D. Parkinsonian: This gait is characterized by a stooped posture, trunk leaning forward, and short, shuffling steps where the feet barely leave the ground. The patient often experiences "freezing" when trying to initiate walking or change direction. It results from dopamine depletion affecting the extrapyramidal motor system.