Which matters should be covered in regular inspections at a coal mine?

The choice that focuses on the presence of flammable gases and the stability of roadways is the most appropriate for regular inspections at a coal mine. This reflects the critical safety considerations specific to mining operations.

In a coal mine, monitoring the presence of flammable gases is essential to prevent potential explosions and ensure the safety of miners. Gases like methane are common in coal mining environments, and their accumulation can pose serious threats if not detected and managed promptly.

Additionally, checking the stability of roadways is vital for the safe transport of personnel and materials within the mine. Unstable ground can lead to collapses or accidents, jeopardizing the safety of workers. Regular inspections that address these issues are necessary to maintain a safe working environment, comply with safety regulations, and minimize risks associated with mining operations.

While other options, such as food services and hiring practices, are relevant to mine operations, they do not directly address the immediate safety risks associated with the mining environment. Personal protective equipment conditions are important as well, but they pertain more to individual safety rather than broader environmental safety risks that regular inspections should prioritize.