Final answer:
To ensure safety when using a match in making tea, extinguish the match before disposing of it to prevent potential fires.
Step-by-step explanation:
When using a match in making tea, or for any similar purpose, it is imperative to ensure safety by taking specific precautions. The appropriate step to ensure safety as per the provided choices is:
D. Extinguish the match before disposing of it.
This is crucial because a lit match can easily start a fire if it comes into contact with flammable materials. Before extinguishing, you should also ensure to use the match in a well-ventilated area to prevent the build-up of harmful fumes and to follow all safety instructions when handling open flames, including keeping flammable materials away, not leaving an open flame unattended, and being aware of the location of fire safety equipment.