Regarding nuclear power, which statement is correct?

Regarding nuclear power, which statement is correct?    

A. The cost of building a nuclear power plant is relatively modest.             

B. Fatality rates for nuclear power plant workers are low by comparison with oil, coal, and natural gas power plants.                

C. Barring accidents, nuclear power plants do not emit atmospheric pollutants.   

D. On average, nuclear power plants produce only modest amounts of toxic waste.