What should you do when approaching a construction zone?
Answer: B — Reduce your speed and be prepared to stop.
When approaching a construction zone, it is important to reduce your speed and be prepared to stop. Option A is incorrect as maintaining your speed can be dangerous and potentially lead to accidents. Option C is incorrect because increasing your speed is not only unsafe, but can also lead to fines for speeding in a construction zone. Option D is also incorrect as following the instructions of construction workers may conflict with traffic signals and traffic laws. B is the most appropriate option as it allows for caution and flexibility in a potentially hazardous situation.