Expansionary policy boosts the economy in the short run but not the long run.
Option A
Explanation:
Germany was considered one of the richest countries before World War 1. Their economy was very steady and there is no match for them among countries.
Due to the effect of World War 1 the country was into hyperinflation and all the prices of perishable things and food items has increased at a very fast pace. To balance the inflation they applied Expansionary monetary policy which uses the central bank to print money to stimulate the economy.
The increase in supply of printed money will ease out the lending rates and it will boost the economy.