Robert Has Been Given a Benik Vest to Wear by His

Robert has been given a Benik vest to wear by his therapist to help him deal with his sensory hypersensitivity.The theory behind why the vest may be effective is:

A) It provides warmth so he is calmer and less affected by sensory input
B) It provides proprioception so he is calmer and less affected by sensory input
C) It blocks tactile input so he is calmer and less affected by sensory input
D) It provides stability so he is calmer and less affected by sensory input