Answer:
As people died, it became harder and harder to find people to plow fields, harvest crops, and produce other goods and services. Peasants began to demand higher wages.
Step-by-step explanation:
A.
Governments developed a public education system to train the poor.
B.
The unemployment rate skyrocketed, leaving most European nations in an economic depression.
C.
Peasants and serfs filled the positions, leading to the fall of feudalism.
D.
Knights and lords were sent by kings to fill the positions, making Europe vulnerable to invasion.