“When we open the door, swirling whirlwinds of soil beat against us unmercifully, and we are glad to go back inside and sit choking in the dirt. We couldn’t see the streetlight just in front of the house. One morning, early, I went out during a lull, and when I started to return I couldn’t see the house. I knew the direction, so I kept on coming, and was quite close before I could even see the outline. It sure made me feel funny.”—“Grace,” Dust Bowl survivor, 1935 What can you infer from this account about the main economic effect of the Dust Bowl on the Great Plains region?

a. It affected the development of transportation networks in the Great Plains region.
b. It affected the ability to produce profitable crops in the Great Plains region.
c. It affected the health of the people living in the Great Plains region.
d. It affected the social well-being of communities in the Great Plains region.