Which option describes a proper behavior for flaggers?

The correct answer emphasizes the importance of flaggers maintaining constant awareness of oncoming traffic. By always facing oncoming traffic, flaggers can effectively monitor vehicles and react quickly to unforeseen circumstances. This practice enhances the safety of both the flagger and the road users by allowing the flagger to communicate necessary instructions and signals clearly and respond promptly to any potential hazards.

In contrast, other behaviors such as facing away from traffic or interacting with workers while flagging compromise the flagger's ability to control traffic effectively and ensure safety. Standing on the closed lane side, while safer than being in the line of traffic, does not allow the flagger to have the necessary visibility of approaching vehicles, which is critical for executing their responsibilities safely.