Sorry I’m only answering cause I need to upload
Answer:
I believe it is "The labor demands of war industries caused millions more Americans to move--largely to the Atlantic, Pacific, and Gulf coasts where most defense plants located. "
Explanation:
Thomas Jefferson believed the future of the United States was in the common man, he leaned more towards sympathizing with farmers. The Louisiana Purchase was approved by Jefferson mostly so that the agriculturally minded could move further West.