Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to remove scratches from a phone screen [title] Have toothpaste at the ready. [step] Toothpaste should already be a standard part of your medicine cabinet and morning routine. Designed to be abrasive, toothpaste can fix a plastic scratch the same way it cleans teeth.

Ending1: Many people ingest toothpaste that contains baking soda and salt, and have a long-lasting reaction to these ingredients. [substeps] Toothpaste contains an enzyme called betadine that helps to prevent dents from scratches from similar objects. Ending2: It also helps repair scratches incurred from dropped earrings by virtue of the material of the glasses case which has been protective against the sharp edges of the dish soap underneath. [title] Use your fingers to " scrub " at the scratched area. Ending3: [substeps] Use toothpaste labeled as " sanitizing " or " protecting ". [title] Spray the toothbrush on the scratch. Ending4: Because it is home-based and shouldn't require additional purchases, toothpaste is the recommended remedy for fixing plastic scratches. It's important to make sure the toothpaste is an actual paste, as opposed to a gel-based toothpaste.

Answer format: ending1/ending2/ending3/ending4