Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to freeze a credit card [title] Place the card in a freezer-safe container. [step] You may want to use a plastic storage bag, a piece of tupperware, or even a cup. Choose an item that will either cover up your credit card number or is thick enough that the number will not be visible through the ice.

Ending1: [substeps] In a pinch, buy a freezer bag or container specifically designed for freezing items. Secure the container upside down over a table with a towel or a plastic milk jug or both. Ending2: This will also make everything small enough to be freezer-safe. [title] Place the container of ice into the freezer. Ending3: [substeps] For example, if you have a card with a number on the side instead of the 10 you wrote down on the back, simply place that item in the freezer freezer container. Do not cover the " 0 " letters. Ending4: [substeps] If the number is visible through the ice, then you may be tempted to use the card number for online shopping. You could also cover the number with a paper towel or a small rag before freezing, but remember that it will be submerged in water.

Answer format: ending1/ending2/ending3/ending4