Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to replace window screens [title] Take the window frame down. [step] Lay it on a flat surface. [title] Pry the old screen from the frame.

Ending1: [step] You can do this by holding the nails and your screwdriver up or sitting on a cardboard box with your legs stretched out in front of you. [substeps] Place the new window frame on top of the old one, leaving a diagonal line running from the new frame to the first side. Ending2: [step] Be gentle when working with the old screen. [title] Put a trash bag over the wiring, the screen and the entire window. Ending3: [step] The old screen will only have a small, rectangular hole that goes through it. [title] Remove the glass screws that hold the screen in place. Ending4: [step] Use a standard screwdriver to pry the spline, or black rubber seal, up from the frame. The spline holds the screen inside the window frame.

Answer format: ending1/ending2/ending3/ending4