The correct answer is B) four man log roll. The four man log roll is the recommended method for moving patients with suspected spinal injuries onto a spine board. This technique allows the patient's spine to remain stabilized and aligned during the transfer. The four rescuers work together to gently roll the patient as a single unit onto the waiting spine board, minimizing any twisting or bending of the spine. The other options are not recommended for spinal injury patients. A two-man extremities carry does not provide enough support for the spine. The fireman's drag and pack-strap carry could cause further injury by bending or twisting the spine.