You see a signal person at a road construction site ahead. When should you obey their instructions?

Answer: C — At all times

Obeying the instructions of a signal person at a road construction site is crucial for ensuring safety for both the workers and motorists. These individuals are trained to manage traffic flow and provide guidance in situations where standard traffic laws may not apply due to the presence of construction. Their directions are essential because they take into account the unique circumstances present at the site, which can change frequently as work progresses. It is important to understand that following the signal person's instructions at all times is necessary to navigate safely through construction zones, as they are there to mitigate risks and prevent accidents. This proactive adherence helps to maintain a structured and secure environment on the road, especially in potentially hazardous areas such as those disrupted by construction. In contrast, the other choices suggest conditions under which instructions might be ignored, which could lead to confusion or accidents. For example, the presence of orange cones or the existence of conflicting signs might not fully account for the dynamic environment of a work site that the signal person is managing.