The United States Consumes 2

The United States consumes 2.5*10¹⁹ J of energy each year. A typical solar flare releases 5.0*10²⁴ J of energy. How many years could we run the United States on the energy released by this solar flare if all of the released energy could be used?

A) 5*10^-6 years
B) 200,000 years
C) 1.25*10⁴⁴ years
D) about 12 years
E) 500 years