You Have Just Received a Referral for a Patient with a SCI.When

You have just received a referral for a patient with a SCI.When you go to his room,he is in a halo device.Halo devices are

A) typically used to immobilize cervical fractures; patients with halos are usually on bedrest for 3 to 4 weeks until the fracture begins to heal.
B) typically used to immobilize thoracic fractures; patients with halos are usually on bedrest for 3 to 4 weeks until the fracture begins to heal.
C) typically used to immobilize cervical fractures; in general halo devices allow an earlier progression to upright activities and involvement in rehabilitation.
D) typically used to immobilize thoracic fractures: in general,halo devices allow an earlier progression to upright activities and involvement in rehabilitation.