The responsibility to provide a safe working environment and promote the health and well-being of...

Comprehensive and Detailed in Depth Explanation:

The employer has the primary responsibility to provide a safe working environment and promote employee health and well-being, as mandated by occupational health and safety laws (e.g., OSHA in the U.S., or the Health and Safety at Work Act in the UK). This includes implementing safety policies, providing training, and addressing hazards.

Option A (Employer): Correct, as employers are legally and ethically responsible for workplace safety.

Option B (Employee): Employees must follow safety protocols, but the primary responsibility lies with the employer.

Option C (Labor union): Unions advocate for safety but do not bear primary responsibility.