Why were prominent American writers of the 1920s called the "lost generation"?

They lost books stored in Europe during the war.

They lost their ability to write creatively during the war.

They survived the war, but were physically wounded.

They had trouble adjusting to life in the postwar era.

The correct answer here is the last option

The Lost Generation was a term first used by Gertrude Stain and later popularized by Ernest Hemingway as it refers to writers who had troubles adjusting to the world after all the horrors they witnessed in the World War I. They abandoned the traditional values of the time and wanted to find their own. One of the prominent writers of the Lost Generation was Ernest Hemingway.

The reason why prominent American writers of the 1920s were called the ‘lost generation’ was primarily because of the postwar era where in because of it, they had trouble adjusting to life because of the changes that has occurred in their era. The correct answer is the last choice provided above.