The intercept (1.5) in this equation is best interpreted as:

A. the long-run sustainable growth rate.

B. the growth rate of total factor productivity.

C. above-trend historical growth that is unlikely to be sustained.

An economic forecasting firm has estimated the following equation from historical data based on the neoclassical growth model:

Potential output growth \(=1.5+0.72(\) Growth of labor \()+0.28(\) Growth of capital)