Which of the following characterizes the economic conditions of the United States in the late '50s and early '60s?

large middle class

lack of union jobs

widespread poverty

economic prosperity

The answers are a), b), and c). Despite economic prosperity, the United States suffered from widespread poverty. Unions comprised almost half of the workforce, resulting in a large-scale expansion of the middle class in the 50's.

Lack of union jobs because I am pretty sure that the time era you are in is the great depression.