What should be included in a biological spill kit for sharp disposal?

The correct choice emphasizes the inclusion of engineering controls in a biological spill kit for sharp disposal. Engineering controls are critical for managing hazardous materials and minimizing risks related to spills. These may include specialized containers or systems designed to securely store and dispose of sharp objects, reducing the likelihood of injury during handling.

When assembling a biological spill kit, it's essential to consider the overall safety and effectiveness of the containment and disposal methods. Engineering controls are designed to physically eliminate or reduce hazards, ensuring that any sharp items can be handled and disposed of securely without exposing personnel to risk.

While other components such as waste disposal bags, protective gloves, and disinfectants are also important for spill response, they primarily focus on handling and preventing contamination rather than the physical processes that manage sharp objects. Therefore, the emphasis on engineering controls highlights a proactive approach to safety in biological environments.