The Nurse Is Transporting the Client in a Wheelchair,and Comes

The nurse is transporting the client in a wheelchair,and comes to a downward incline.Which action by the nurse will allow for safely transporting the client down the incline?

A) Applying the brakes on one of the chair's wheels
B) Pushing the wheelchair forward while pulling back on the handles
C) Positioning the nurse's body between the wheelchair and the bottom of the incline and walking backwards down the slope
D) Zigzagging sideways down the incline so the wheelchair is always pointing at a 45° angle to the slope