<span>The correct answer is letter A. the principles of the United States Constitution. Prior knowledge in which of the following areas would best help you understand the ideas Lee expresses in his letter are "the principles of the United States Constitution."</span>
Answer: What is particularly unique about the United States middle class?
b. It is broken into two subcategories: upper and lower middle class.
Explanation: The unique thing about United States middle class is that it comprises of both lower and upper middle class which are:
1. The lower middle class is often made up of less educated people with lower incomes, such as managers, small business owners, teachers, and secretaries.
2. The upper middle class is often made up of highly educated business and professional people with high incomes, such as doctors, lawyers, stockbrokers, and CEOs.
Can you be more descriptive in your question
