Which of the Following Is NOT One of the Causes

Which of the following is NOT one of the causes of the high expense involved in nuclear power production?

A) It costs about twice as much to build a nuclear power plant than it does to build one that utilizes fossil fuels.
B) Nuclear power plants last about 40 years.
C) Nuclear plants are expensive to decommission.
D) Nuclear fuel is three times as expensive as fossil fuels.
E) Nuclear plants are more expensive to maintain than conventional plants,partly because the disposal of the fuel is costly.