What must you be cautious of when driving on a construction site?

When driving on a construction site, it's crucial to be aware of various hazards that can impact safety. The correct answer highlights the need to be cautious of soft soil, people, grading stakes, and power lines.

Soft soil can affect the stability and traction of vehicles, increasing the risk of tipping or getting stuck, which poses a danger to the operator and surrounding personnel. Additionally, personnel are often present on-site, and their safety is a priority. Being alert to their movements can prevent accidents. Grading stakes are used to indicate grading levels and boundaries; driving over them can not only cause damage to the vehicle but also disrupt site plans or endanger workers. Lastly, power lines are a significant hazard. Striking overhead power lines during operation can lead to serious injuries or fatalities through electrocution.

Overall, being vigilant about these specific hazards is essential for ensuring safety on a construction site, making this option the comprehensive choice to consider while driving in such environments.