Final answer:
The peak of the business cycle represents the highest point of economic activity before a recession begins. It is the point where the economy is experiencing the maximum level of output, employment, and income.
Step-by-step explanation:
The peak of the business cycle represents the highest point of economic activity before a recession begins. It is the point where the economy is experiencing the maximum level of output, employment, and income. In the context of the given options (B, C, D, E), the answer would depend on which option represents the highest point in a specific scenario. Without specific information, it is not possible to determine the exact letter that represents the peak.