The period of the business cycle between the peak and the trough is the  recovery.   depression.   expansion. Correct!  recession

The business cycle consists of a series of phases that an economy goes through over time. The period between the peak (the highest point of economic activity) and the trough (the lowest point) is typically classified as a recession. During this phase, economic activity declines, leading to reduced consumer spending, decreased business investment, and rising unemployment rates.

Essentially, when an economy is transitioning from its peak—where growth and economic indicators are at their best—to the trough, it experiences a downturn characterized by a significant reduction in economic momentum. This phase contrasts with recovery and expansion, where the economy is rebounding or growing after a downturn.

In summary, the correct term that describes the period between the peak and the trough of the business cycle is indeed "recession."