Select from options: Continue writing the next sentence.

How to freeze a credit card
Place the card in a freezer-safe container.
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.

Choices:
(a). 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.;
(b). This will also make everything small enough to be freezer-safe. Place the container of ice into the freezer.;
(c). 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.;
(d). 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:
(d).