The correct answer is A) 1973.
1973 was the year that the US had the greatest energy usage per capita.
Energy consumption in the United States has increased in recent years. Population in the United States and industry consume a lot of energy annually. Experts say that the United States total consumption of electric energy per year is 3,902.00 billion kilowatts. This represents an average of 12,001 kWh per year. In 1973, the US energy consumption was about 8,573 kWh. An elevated number for the time and the population. Recently, many Americans have understood that they have to be more cautious with the usage of energy in their homes and office.