What should you do to back up your vehicle safely?

• Place your foot on the brake, shift to reverse, and grip the steering wheel at the top center.
• Place your right arm on the passenger seat and look through the rear window.
• Quickly shift to reverse and accelerate while looking in the side mirrors.
• Both A & B
  Explanation:

  "To back up your vehicle safely, place your foot on the brake, shift to reverse, grasp the steering wheel at the 12 o'clock position with your left hand. Place your right arm on the back of the passenger seat and look directly through the rear window."