What is the speed limit on most highways in Florida?

Answer: D — 75 mph

The speed limit on most highways in Florida is 75 mph. This is because Florida has higher speed limits compared to other states due to its large and straight roads. Any speed limit lower than 75 mph would not be safe and efficient for drivers to travel on these highways. Option A (25 mph) is too low for a highway and is typically seen in residential areas. Option B (45 mph) is still relatively low for a highway. Option C (65 mph) is a common speed limit for highways in other states, but since Florida has larger roads, the speed limit is typically higher. Additionally, Florida has a separate speed limit for trucks, which is 70 mph, making option D the most suitable answer.