Because the municipal commission of City X expects a severe shortage of electrical power in the coming months, it has increased the rate at which it charges for the usage of electricity in the hope that people will decrease their usage. In the six weeks since this plan was implemented, one of the city’s prominent suppliers of electricity has reported that its customers are now using over 10 percent less power than they were before the price was raised. Clearly, the commission’s plan is working.
Which of the following, if true, supports the conclusion that the municipal commission’s plan is not the reason for the decrease in usage mentioned above?
A. Electricity supply in hospitals, train stations and other public service areas is provided free of charge by the city.
B. The population of City X is among the lowest in the urban regions of the country.
C. Many industrial corporations that use extensive amounts of electrical power are soon going to open regional offices in City X.
D. Citizens of City X have increasingly been choosing the option of sourcing their electrical power from more than one supplier.
E. Per capita spending on electricity is no higher in City X than in other cities in the country.