Answer:
D) All of the choices are correct
Step-by-step explanation:
As a result of World War I, Europe's economy was heavily damaged, a large part of a generation of young European men were injured or killed, and an influenza epidemic spread and killed 50-100 million people. The war caused widespread destruction and loss of life, and the post-war period was marked by economic depression, social unrest, and political turmoil. The Influenza pandemic, known as Spanish Flu, was a global pandemic that spread rapidly across the world, killing more people than World War I itself.