Final answer:
The Hazard Communication Standard requires standardized labels and Safety Data Sheets, a written hazard communication program, and employee training on chemical hazards. The correct answer is d) All of the above.
Step-by-step explanation:
The Hazard Communication Standard (HCS) requires that labels and Safety Data Sheets must be prepared in a standardized format, employers must have a written hazard communication program, and employers must implement an employee training program regarding chemical hazards and protective measures. Therefore, the correct answer is d) All of the above. The HCS stipulates comprehensive guidelines to ensure the safety of workers handling hazardous chemicals, including the establishment of safety protocols, informative labelling, accessible safety datasheets, and mandatory employee training.