When performing overhead work on scaffolding, what protective measure must be taken to prevent objects from falling and striking a person below? post warning tags on the scaffold enable alarm systems instal barricade hazards use toeboards, debris nets.or canopies

## Step 1<br />The problem is about safety measures when performing overhead work on scaffolding. The goal is to prevent objects from falling and potentially injuring someone below. The options provided are:<br />- Post warning tags on the scaffold<br />- Enable alarm systems<br />- Install barricade hazards<br />- Use toeboards, debris nets or canopies<br /><br />## Step 2<br />The first three options, while they may contribute to overall safety, do not directly address the issue of preventing objects from falling.<br /><br />## Step 3<br />The last option, "use toeboards, debris nets or canopies", directly addresses the issue. These tools are designed to catch falling objects, preventing them from reaching the ground and potentially causing injury.