The primary result of road and turnpike development was migration for east to west.
Option A
Explanation:
Throughout America's growth, migration was an influential factor. Although the English decided to settle on the banks of the James River in 1607, the following generations have glanced beyond their settlement limits to the unsettled western regions.
These people understood that their development depends on a continuing provision of migrant humans who are ready to pack their stuff and relatives, move to another part of the mainland, migrate their civilisation and re-enact their life in a new surroundings.
