Answer:
C) provided income subsidies to senior citizens.
B) not change the price of each kilowatt-hour of electricity
Step-by-step explanation:
Regulators could have provided income subsidies to senior citizens. This would be a more efficient way of helping seniors pay their electric bills because it would not change the price of each kilowatt-hour of electricity.
Regulators could have provided income subsidies to enable the elderly to pay off the electric bills rather than mandate that electricity companies charge them less as this would result in lower profits for the companies who might then try to find a way around it.
With this, the price will not change and ensure that the welfare of both the elderly and that of the company is protected.