**Core Concept**
Sharp wastes, also known as biohazardous or infectious waste, pose a significant risk to healthcare workers and the environment. Proper disposal of sharp wastes is crucial to prevent needlestick injuries and the spread of bloodborne pathogens. Infection control guidelines emphasize the need for segregation and disposal of sharp wastes in a manner that minimizes risks.

**Why the Correct Answer is Right**
Sharp wastes should be disposed of in color-coded bags to facilitate segregation and prevent contamination. The correct color for sharp waste disposal is yellow, which is a widely recognized international standard. Yellow bags are puncture-resistant and designed to contain sharp objects, thereby reducing the risk of needlestick injuries and the transmission of infectious diseases. The use of yellow bags for sharp waste disposal is mandated by various regulatory agencies, including the Occupational Safety and Health Administration (OSHA) in the United States.

**Why Each Wrong Option is Incorrect**
**Option A:** Red bags are typically used for disposing of anatomical and pathological waste, not sharp wastes. While red bags are also color-coded for biohazardous waste, they are not the correct choice for sharp waste disposal.
**Option B:** Blue bags are generally used for disposing of infectious waste, but they are not the standard for sharp waste. Blue bags may be used for specific types of infectious waste, such as cultures or stocks of infectious agents, but they are not the correct choice for sharp waste.
**Option C:** Black bags are used for disposing of non-infectious, non-recyclable waste, and are not suitable for sharp waste disposal.

**Clinical Pearl / High-Yield Fact**
Remember that color-coded bags are a crucial aspect of infection control in healthcare settings. Familiarize yourself with the correct color codes for different types of waste to ensure compliance with regulatory guidelines and minimize the risk of infection transmission.

**Correct Answer: C. Black bags are used for disposing of non-infectious, non-recyclable waste, and are not suitable for sharp waste disposal.**