Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to find contact lenses lost on the carpet [title] Act fast. [step] When a contact lens falls out, time is an issue. The longer you wait, the more susceptible the lens will be to germs and damage.

Ending1: If someone realizes their contact lens fell out and you get to reach it, they'll immediately dump the contact into the trash. The best way to avoid this happening is to act fast. Ending2: Also, any motion on the floor can cause the lens to shift and become more difficult to find. As soon as a lens falls out, begin looking. Ending3: In addition, failure to treat a lens quickly can lead to bacteria that can stain. [substeps] When you come across a lens that you know you'll need, wait until it is completely dry to conduct a quick and thorough cleaning. Ending4: If you wait before getting to the spot where the object falls out, the closer it is to detection. [substeps] If the contact lens falls out, inspect it immediately before moving it out of your bag or on your desk.

Answer format: ending1/ending2/ending3/ending4