The first one the change from nation to empire through imperialism
Because food, materials, and money were being used for the war, so they had to even it out to spend it where they needed it most.
The treaty of Versailles was an unfair one. The "war guilt" clause forced Germany and her allies to take all the blame for the world war. Moreover, Germany lost it's land, overseas colonies, population, and coal and iron industry. Germany was also made to pay reparations and limit their armed forces.
The treaty of Versailles was an invitation to deadlier wars in the future. In fact, it can be concluded that the treaty was a controversy in itself. Because Germany was subjected to ill treatment and was made to pay reparations beyond the country's capacity post war, it became the mojor cause for the WW II.
The correct answer is money supply.
The money supply includes all monetary assets that are available in an economy at a specific time period. If the money supply drastically increases then inflation happens and if the money supply decreases then deflation happens. Both can cause horrors for the economy so the economists have to be careful.
It was founded based on the assembly