The answers is D, the expansion of the highway system.
He asked the Roman Catholic Church for help
This was possible for him because he was the holy roman emperor, and when he managed to beat the nobles, he also managed to increase his power through his control of the clergy, so he became the most important person in the country on numerous basis, both as a religious leader and as an emperor of the lands.
President engages in war and regulates taxes
Congress make laws and control a budget
People engage in war acquire land and control a budget
Poverty spread during the Great Depression, because of skyrocketing prices of needed things, which led to people not being able to take care of themselves
hope this helps
