Which statement is most accurate concerning spine motion restriction of an ambulatory patient?

A) Self-restriction is not permitted if a rigid cervical collar is used
B) If the patient is reliable, he can self-restrict while the cervical collar is applied
C) If the patient is unconscious, self-restriction cannot be used
D) The patient should be reminded to continue self-restriction while being seated on the stretcher

B) If the patient is reliable, he can self-restrict while the cervical collar is applied