**Core Concept**
The correct disposal of extracted teeth is crucial to prevent the transmission of infectious diseases, such as HIV and hepatitis. The use of color-coded biohazard bags helps to categorize and manage biohazardous materials in a dental setting.

**Why the Correct Answer is Right**
Extracted teeth are considered biohazardous due to the potential presence of blood and other bodily fluids, which can harbor pathogens. Yellow biohazard bags are specifically designed for disposing of non-sharp, non-anatomical materials, including extracted teeth, amalgam, and other non-infectious materials. These bags provide a safe and secure means of disposing of potentially infectious materials, preventing cross-contamination and exposure to healthcare workers.

**Why Each Wrong Option is Incorrect**
**Option B:** Red biohazard bags are used for disposing of sharp materials, such as syringes, needles, and other sharp objects, which pose a higher risk of injury.
**Option C:** Black bags are used for non-hazardous waste, such as disposable gloves, paper products, and other non-infectious materials.
**Option D:** Blue bags are used for disposing of infectious materials, such as body fluids, anatomical specimens, and other biohazardous materials that require special handling and disposal.

**Clinical Pearl / High-Yield Fact**
Remember the color-coded system for biohazardous waste disposal: red for sharp objects, yellow for non-sharp non-anatomical materials, blue for infectious materials, and black for non-hazardous waste.

**✓ Correct Answer: A. Yellow**