Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean alabaster [title] Choose soft brushes. [step] Brushes that are soft to the touch, such as makeup or artists' paint brushes are great for gently cleaning your alabaster. Make sure these brushes are clean before using them.

Ending1: Even a fingernail has the ability to scratch alabaster's naturally soft surface, so finding a brush that is gentle is pivotal to the cleaning process. [substeps] Avoid using rough surfaces, such as plastic cleaning brushes or steel wool pads, as these may scratch the surface and permanently damage the alabaster. Ending2: Scrubbing brushes are ones that are soft, like cotton, and are soft enough to actually clean alabaster. [substeps] Brushes with hard bristles, such as those found in the dentist's office are great, as they hold moisture and prepare the alabaster for cleaning. Ending3: Do not use your fingernail, as a fingernail can be caught in moisture and can cause tears. Make sure you clean your scrubbed alabaster before using a soap or water solution. Ending4: [substeps] Instead of paper brushes, try with a synthetic brush instead of cotton bristles. These brushes have less textured bristles and tend to be more soft.

Answer format: ending1/ending2/ending3/ending4