What significant economic challenge did european countries face after world war i? massive debt trade imbalances drought overproduction

The correct answer is massive debt. After the First World War, Europe underwent an economic recession. This was due to many reasons. Firstly, countries decided to prioritize the production for the war. Also, much of the workforce was recruited, leaving local economies with a shortage of people in factories. Finally, all countries involved used their expenses to support the war.

i feel the answer is 6.

i also think it is c