Which of the following statements is/are correct in context with the passage?

• A. Economists fail to distinguish between consuming and producing value and form a mistaken belief.
• B. Economic growth and declines have always been led by changes in business and durable goods investment.
• C. Income distribution is evenly distributed among the rich and is compatible with the tendency to consume.
• D. Only (a)
• E. Both (a) and (b)