What Was the Purpose of the "Squeeze Box" Designed by Temple

What was the purpose of the "squeeze box" designed by Temple Grandin?

A) It restricts the movement of autistic children to reduce potential injury.
B) The padded side boards press tight against the occupant and lead to a reduction in anxiety.
C) The box is a humane way of keeping autistic children safe while they receive various forms of behavioral treatments.
D) It allows autistic children to roam about with some restrictions, yet keeps them safe from injury because it is padded on all sides.