**Core Concept**
Placenta disposal is a critical aspect of maternal care, ensuring a safe environment for both the mother and newborn. Proper disposal of the placenta prevents infection and promotes asepsis in the postpartum period.

**Why the Correct Answer is Right**
The correct answer involves the concept of autoclaving, a process used to sterilize medical waste, including placentas. Autoclaving uses high-pressure steam to kill bacteria, viruses, and other microorganisms, rendering the waste non-infectious. This method is essential for disposing of placentas, as it prevents the spread of infections and maintains a clean environment for healthcare workers.

**Why Each Wrong Option is Incorrect**
**Option A:** Incineration is a method used for disposing of certain types of medical waste, but it is not the preferred method for placenta disposal due to environmental concerns and the potential for incomplete destruction of pathogens.
**Option B:** Burial or entombment is not a recommended method for placenta disposal, as it can lead to contamination of soil and groundwater.
**Option C:** Chemical disinfection may not be sufficient for placenta disposal, as it may not completely eliminate all microorganisms, and the chemicals used can be hazardous to healthcare workers.

**Clinical Pearl / High-Yield Fact**
Placentas should be disposed of immediately after delivery, ideally within 30 minutes, to prevent bacterial growth and contamination.

**Correct Answer: B. Burial or entombment is not recommended for placenta disposal.