Final answer:
Disposable tools should be stored in an airtight container to ensure they remain sterile until use. It is important to prevent contamination by avoiding storage in public or open areas, and they should not be in the trash unless they're used.
Step-by-step explanation:
New or single disposable tools should be stored properly to maintain hygiene and safety. The best option for storing these tools would be A) In an airtight container. This prevents contamination from dust, bacteria, and other pollutants. Storing disposable tools in an airtight container ensures that they remain sterile until the moment they are used. It's important to avoid placing them in places where they can be contaminated such as a public area or an open shelf, and they should certainly not be discarded in the trash unless they have already been used and are ready for disposal.