Saccharin is unstable when heated but does not react chemically with other food ingredients, which makes it fit for storage. Therefore, the correct option is D.

What is the use of saccharin?

In addition to carbonated diet drinks, saccharin is used to sweeten low-calorie candies, jams, jellies, and cookies. It's also used in many medicines. Saccharin can be used similarly to table sugar to sprinkle onto food, such as cereal or fruit, or used as a sugar substitute in coffee or when baking.

How do you identify saccharin?

High-pressure liquid chromatography with ultra-violet detection (HPLC–UV) is one of the most commonly used methods to identify and quantify saccharin in non-alcoholic beverages.