Answer:
B.) Inflation
Step-by-step explanation:
During the war, there was a shortage of resources among regular civilians because they were being used for military purposes. Therefore prices began to go higher, that is called inflation.
When the war ended, and soldiers came back, that meant more people wanting to consume resources (food, things...) add to that the shortage that was already happening and you have a time period in which the prices begin to rise even faster, since demand augmented, an severe inflation.