A research table presents the annual electricity production by source in a municipality: Hydroelectric (40%), Wind (30%), Solar (15%), Biomass (10%), Natural Gas (5%). If total production is 500 gigawatt-hours (GWh), how much energy is generated from renewable sources (Hydro, Wind, Solar, Biomass combined)?
- A425 GWh
- B450 GWh
- C475 GWh
- D490 GWh