Which of the following made up the nation's poorest group after the Second World War?

A) Single women
B) Mexican Americans
C) Native Americans
D) African Americans

Nation's Poorest Group

The demographic segment within a country that has the lowest income and living standards, often facing significant economic hardships.

Second World War

A worldwide war that occurred between 1939 and 1945, engaging the majority of the globe's countries, among them all the major powers, which ultimately divided into two rival military factions: the Allies and the Axis.