Canopus is the second brightest star in the night sky. It is about 300 light years away. The energy is produced inside the star through nuclear reactions. If we receive $$5.0 \times 10^{-8}\,\mathrm{W/m^2}$$ energy from Canopus, how much mass does it lose per second?

A

$$1.70 \times 10^{-6}\,\mathrm{kg}$$

B

$$1.91 \times 10^9\,\mathrm{kg}$$

C

$$5.62 \times 10^{13}\,\mathrm{kg}$$

D

$$6.34 \times 10^{31}\,\mathrm{kg}$$