Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean outdoor tiles [title] Sweep the tiles daily. [step] Try to sweep your porcelain tiles every day or so. Use a soft, natural bristle broom or take a vacuum attachment and suck up the dirt.

Ending1: Regular sweeping will prevent your tiles from becoming caked with dirt and stained. [substeps] If your porcelain tiles lead up to an entryway for your house, you'll want to sweep them more often. Ending2: Sweep around the tiles to remove any debris and dust. Use a rag and a rough buffing brush for these jobs. Ending3: Focus on using a tack broom or a cookie broom, as your tiles will still be stained. [substeps] Mop using low strokes and clean up the grime. Ending4: Scrub hard to get out all of the grime and dust. Watch for too much dirt to be efficient enough to vacuum-sweep.

Answer format: ending1/ending2/ending3/ending4