The response that would not be considered a cost associated with using nuclear power instead of traditional energy sources such as fossil fuels is:
B Nuclear power plants can work with renewable energy sources such as solar and wind power when they are not available.
This statement describes a potential benefit of nuclear power rather than a cost. The other options (A, C, and D) highlight risks, waste disposal issues, and resource limitations associated with nuclear energy, which are all considered costs in comparison to traditional energy sources.