What should be done if the public is at risk during construction?

The correct choice emphasizes the importance of ensuring a safe environment during construction activities. Making the area safe and securing the site is critical because it helps to minimize risks to the public who may be near or affected by the ongoing construction work. This can include measures such as setting up barriers, signage, and ensuring proper safety protocols are followed to prevent accidents.

While notifying local authorities and stopping all work until the area is clear might seem responsible, those actions may not always be practical or the most effective way to protect the public. Stopping work can lead to delays and additional risks if not managed properly. Similarly, using extra manpower to monitor the area might help, but it does not directly address creating a safe environment. The priority should always be on taking immediate actions that provide effective barriers and safety measures to ensure public safety in the vicinity of construction sites.