Final answer:
The 1926 Construction Safety Standards are mandatory regulations for all sectors, intended to safeguard workers from various serious hazards in accordance with OSHA regulations. c) Mandatory regulations for all sectors.
Step-by-step explanation:
The 1926 Construction Safety Standards are considered by many as c) Mandatory regulations for all sectors. These safety standards were set by the Occupational Safety and Health Act (OSHA), which grants the authority to issue health and safety regulations for the workplace. These regulations are designed to protect workers from a wide range of serious hazards and include measures such as providing fall protection, preventing trenching cave-ins, and minimizing exposure to infectious diseases and harmful chemicals. Employers are legally required to follow these standards to ensure the safety and health of their employees.