D.
For example in New York, the Erie Canal was dug to connect Lake Erie in western NY to Hudson River in eastern side of NY.
Waterway built to allow ship travel vs. slower overland wagons etc.
I Believe is Movement or Location. I hope it helps
Answer:
As a result of the rule limiting the size of the House of Representatives to _435 members, U.S. congressional districts on average now have very substantial populations
