During partial building renovations while operations continue, the primary safety priority is establishing clear barriers and restricted zones to separate construction activities from business functions. The correct choice is:
* Setting up barriers to create a safe perimeter, restricting staff access, and enforcing PPE requirements in work zones.
* This approach prevents exposure to hazards such as dust, noise, falling objects, and construction- related accidents.
* Why the other options are incorrect:
* (A) Monthly air quality testing is beneficial but does not address immediate physical safety risks.
* (B) Hearing protection and eye wash stations help in construction areas but do not sufficiently protect the larger workforce from hazards.
* (D) Requiring all staff to wear PPE is excessive unless they are directly involved in construction-related tasks. A security checkpoint may be useful but is not the most critical precaution.