The Nurse Positions the Client on the Sling,wheels the Lift

The nurse positions the client on the sling,wheels the lift into position,and connects the sling to the lift.Which are priority safety measures prior to lifting the client?

A) Locking the wheels of the lift
B) Opening the base to the widest position
C) Lowering the side rails
D) Checking that the hooks are correctly placed and that matching chains are of equal length
E) Facing the hooks toward the client