 Which group of people shares the most similarities with the group of patients in the mental institution, as they are described by the author?
Illustrated by Freas Miss Abercrombie, the manual therapist patted the old man on the shoulder. Miss Abercrombie smoothed her smock down over trim hips and surveyed the other patients working at the long tables in the hospital's arts and crafts shop. Through the barred windows of the workshop, rolling green hills were seen, their tree-studded flanks making a pleasant setting for the mental institution. The crafts building was a good mile away from the main buildings of the hospital and the hills blocked the view of the austere complex of buildings that housed the main wards. She stopped behind a frowning, intense patient, rapidly shaping blobs of clay into odd-sized strips and forms. Safely behind the patient's back, Miss Abercrombie smiled ever so slightly. A tall, blond patient with a flowing mustache, put one more dab of paint on his canvas and stood back to survey the meaningless smears. Moving slowly down the line of benches, she made short, precise notes on the day's work accomplished by each patient. As she drove out of the hospital grounds, Thaddeus Funston stood at the barred window of his locked ward and stared vacantly over the hills towards the craft shop. He stood there unmoving until a ward attendant came and took his arm an hour later to lead him off to the patients' mess hall. The sun set, darkness fell over the stilled hospital grounds and the ward lights winked out at nine o'clock, leaving just a single light burning in each ward office.
 A Kindergarten class
 A circus troupe  A disorderly mob  An artists' collective  A Kindergarten class