Which of the following factors in the decline of medieval Europe can be attributed to the Hundred Year's War?
a. The residents of England and France established separate national identities.
b. The people lost faith in God and the Roman Catholic Church.
c. The regions population declined by 30%.
d. Poor workers began receiving wages and gaining social mobility.
"c. The regions population declined by 30%" is the best option from the list, since this was one of the most deadly and wide-reaching wars in history, meaning that the workforce was severely diminished.
