What should you do if you see a flagger on a construction site?

Answer: B — Follow their instructions and proceed with caution

When you see a flagger on a construction site, the appropriate action is to follow their instructions and proceed with caution. Flaggers are specifically trained to control traffic and ensure the safety of both drivers and construction workers. They have the authority to direct vehicles and are positioned to provide guidance in areas where visibility may be limited or where changes in the traffic pattern occur due to construction activities. Complying with their directions is crucial as it not only adheres to traffic laws but also minimizes the risk of accidents. Flaggers often use hand signals or stop/slow paddles to communicate, and their guidance is intended to facilitate a safe and orderly passage through construction zones, which can often be hazardous. The other choices are not suitable as they either promote unsafe driving behavior, such as speeding through the site or ignoring the flagger, or suggest an inappropriate response to the situation, such as honking the horn, which could distract the flagger and other drivers, and create danger rather than resolve it. Following the flagger's instructions helps ensure safety for everyone involved.