If excessive materials are left on site, what would be a direct hazard, and what is the most appropriate control?
a. Hazard: Slips and trips; Control: Keep the site clean and organized
b. Hazard: Noise pollution; Control: Provide ear protection
c. Hazard: Falling objects; Control: Wear a hard hat at all times
d. Hazard: Fire risk; Control: Avoid using flammable materials