Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to point a wall [title] Purchase a bag of lime mortar. [step] Many types of mortar are available for purchase, but lime mortar is ideal for pointing walls. Lime mortar should be available for purchase at a local hardware store or gardening center.

Ending1: Buy mortar that's no higher than 24-3 us quarts for maximum alkalinity. [substeps] At the hardware store, get 1 gallon of mortar. Ending2: [substeps] Make sure your mortar comes with instructions on how to use it, including size, band-aid, and adhesive strips. Look online for useful materials and ask people you know if they have any suggestions. Ending3: Landscaping-supply businesses will also likely sell lime mortar. [substeps] It's difficult to estimate how much lime mortar you'll need to point your wall. Ending4: [substeps] If planting well, use a bag of lime mortar mixed with the soil of your patio or vegetable garden. A salt shaker of rocks is also acceptable for most uses.

Answer format: ending1/ending2/ending3/ending4