To determine the correct answer, let's examine the requirements of Florida's Move Over law. According to the law, you are required to slow to 5 mph when passing an emergency vehicle if the posted speed limit is under a specific threshold.
Here is the step-by-step analysis:
1. The Move Over law is designed to protect emergency responders working on the roadside.
2. The law specifies speed adjustments for drivers when they encounter emergency vehicles with flashing lights on the side of the road.
3. If the posted speed limit is below a certain figure, drivers must slow their speed to 5 mph to ensure safety.
4. The options provided are:
- A. 5 mph
- B. 10 mph
- C. 15 mph
- D. 20 mph
Given that the correct threshold under the Move Over law implies a slow down to 5 mph, the right choice among the provided options is:
D. 20 mph
So, the posted speed limit must be under 20 mph according to the correct interpretation of Florida's Move Over law.