What does the Occupational Safety and Health Administration (OSHA) oversee?

The Occupational Safety and Health Administration (OSHA) primarily focuses on ensuring safe and healthy working conditions for employees by setting and enforcing standards. The correct choice highlights several key areas that OSHA oversees, including ethylene oxide guidelines, which are crucial for safety when using this chemical for sterilization purposes; worker safety, which encompasses a broad range of standards designed to protect workers from various hazards; and the bloodborne pathogen standard, which is critical in health care settings where there is a risk of exposure to bloodborne pathogens.

Ethylene oxide is used to sterilize medical equipment and requires strict safety protocols due to its toxicity and potential health risks to workers. The bloodborne pathogen standard addresses the potential hazards that employees may face when working in environments where they could be exposed to infectious materials, outlining the necessary precautions and procedures to minimize risk.

The other options, though they cover important safety topics, do not broadly encapsulate the overall mission of OSHA in the way that the selected option does. They either focus too narrowly on specific guidelines or standards that do not fully represent the scope of OSHA’s oversight functions. Thus, the correct answer effectively captures the essence of OSHA's responsibility in the workplace.