A
Walks into the walker, puts weight on the hand pieces, and then puts all four points of the walker flat on the floor.
B
Puts weight on the hand pieces, slides the walker forward, and then walks into it.
C
Puts all the four points of the walker flat on the floor, puts weight on the hand pieces, and then walks into it.
D
Puts weight on the hand pieces, moves the walker forward, and then walks into it.
Answer: Puts all the four points of the walker flat on the floor, puts weight on the hand pieces, and then walks into it.