Distribution is the way something is 1. represented on a map.
2. spread across an area.
3. calculated by researchers.
4. predicted by cartographers.

B

Explanation: Mostly self explanatory, you can look up the definition of distribution if needed but when I hear distribution I image spreading across something

there is no image for me to refer

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.