Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to kill grass [title] Mow the area of grass if it's taller than 3 inches (7.6 cm). [step] Short grass will give you an even surface to work on. Don't water the grass after you mow it.

Ending1: When it's tidy or if there is new growth, add a few inches of topsoil, basically a layer of straw, manure, or compost to the area before breaking up the topsoil. [substeps] Add at least 1 inch (2.5 cm) of topsoil. Ending2: If you usually use a garden hose, now is the time to go for it. [substeps] This means you won't need to mow repeatedly. Ending3: You want the grass to be as dried out as possible. [title] Cover the grass with newspaper or cardboard. Ending4: [title] Use electric clippers to cut grass once your lawn is in full shade. [step] This is when dirt provides moisture for plants, preventing them from drying out in the sun.

Answer format: ending1/ending2/ending3/ending4