What device restricts or deprives a person's movement physically?

The correct choice is based on the definition and purpose of physical restraint. A physical restraint is specifically designed to restrict or deprive a person's movement through physical means. This may involve devices that secure a person's limbs or body in a manner that prevents them from moving freely. Physical restraints are often used in various settings, such as healthcare or correctional facilities, to ensure the safety of individuals who may pose a threat to themselves or others.

In contrast, chemical restraints involve the use of medications to restrict a person's movement or control behavior, which does not fit the description of physically preventing movement. Mobility aids are tools such as crutches or walkers that enhance mobility rather than restrict it, and assistive technology encompasses various devices that help individuals perform tasks, again focusing on enabling rather than restricting movement. Thus, physical restraint is the only option that accurately describes a device that physically limits a person's ability to move.