334. You are alone and must remove a casualty with a suspected spinal injury from a very hazardours situations. You should

A. Grab his wrists and drag him lengthwise
B. Keep his body rigid, support his head and neck and roll himm away from the scene
C. Tie his legs together and drag him feet first
D. Grasp his clothing under his shoulder, support his head and neckand drag him lengthwise