Final answer:
In a dental setting, sharp items should be disposed of in a biohazard container labeled for sharps to ensure safe handling and prevent the spread of infections.
Step-by-step explanation:
In a dental setting, sharp items should be disposed of in a biohazard container labeled for sharps (option B). This container is specifically designed to safely hold and contain sharp objects, such as needles or scalpel blades.
Wrapping sharp items in regular plastic bags (option A), throwing them in the regular trash (option C), or burying them in the clinic garden (option D) are not appropriate disposal methods. These methods can pose a risk of injury to individuals handling the waste and can potentially lead to the spread of infections or contamination.