Final answer:
The middle class in Europe experienced growth and prosperity after World War II due to economic boom, increased consumerism, and opportunities for higher education.
Step-by-step explanation:
The middle class experienced significant growth and prosperity in Europe after World War II. The economic boom in the post-war years, particularly in Western Europe, led to a rise in the standard of living for many middle-class families. Access to well-paying industrial jobs, increased consumerism, and opportunities for higher education contributed to the expansion of the middle class.