Janiya is taking a road trip. The distance she plans to travel can be written as 3 × 10^2 kilometers, 3 x 10^5 meters, 3 x 10^7 centimeters, or 3 x 10^8 millimeters.
Which distance uses the most appropriate units? (1 point)
A. 3 × 10^7 centimeters
B. 3 × 10^8 millimeters
C. 3 x 10^5 meters
D. 3 × 10^2 kilometers
The most appropriate units for a road trip distance are kilometers (km) because it is the largest unit of distance and commonly used for longer distances traveled by car.
Therefore, the answer is option D. 3 × 10^2 kilometers.