Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to stop efflorescence [title] Apply vinegar to the affected area to avoid using chemicals. [step] Dampen the wall with water first. Mix even portions of vinegar and water to create a solution.

Ending1: Use a putty knife to apply the solution to your wall, working in small sections. Pay special attention to areas that appear most likely to chafe or other rough spots. Ending2: [substeps] Repeat this treatment once every four days, or as needed until the warts disappear. Both vinegar and water can be used for best results. Ending3: Regular white vinegar with 5% acidity works fine. With a sponge, apply vinegar to the area with efflorescence and clean it a circular motion. Ending4: Dip a washcloth in the vinegar mixture and gently clean the affected area. [substeps] Another example is if you received the rash from wearing shorts, you could use the vinegar to clean the rash.

Answer format: ending1/ending2/ending3/ending4