Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean grout with vinegar [title] Apply vinegar to the grout. [step] Use a vinegar-soaked cloth or a spray bottle filled with vinegar to coat the grout you wish to get clean. If you are trying to clean grout on a vertical surface, a spray bottle is probably your best bet.

Ending1: [substeps] Vinegar is the most common choice, but you can also use other methods, such as a bucket. Focus your vinegar cleaning efforts on one square of the grout. Ending2: Leave a bit of the vinegar of your choice on the grout. To really make the cleaning process much easier, press down on the vinegar on the grout and a little at a time. Ending3: [substeps] After applying the vinegar, wait ten minutes before moving on to the next step. Always use distilled white vinegar or specialized cleaning vinegar to clean grout. Ending4: Using a mild cleaning detergent, fill it about halfway with vinegar and begin to rub the surface. Rinse the surface lightly with cool water afterwards.

Answer format: ending1/ending2/ending3/ending4