Question

when the demand for electricity peaks during the hottest days of summer, florida power and light company can generate more electricity by using more fuel and increasing the working hours of many of its employees. the company cannot, however, increase electric power production by building additional generating capacity. this means that the company is in the
long run.
intermediate run.
market run.
short run.

Explanation:

In economics, the short - run is a period where at least one factor of production (in this case, the generating capacity which is like capital) is fixed. The company can change variable factors (fuel, labor hours) but not the fixed factor (generating capacity). The long - run would allow for changing all factors (including building new capacity). The market run is not a standard economic term in this context. The intermediate run is also not a commonly used term in basic micro - economic production time - period analysis.

Answer:

short run.