Earth Is About 28,000 Light Years from the Center of the Milky

Multiple Choice

Earth is about 28,000 light years from the center of the Milky Way Galaxy.If a supernova explosion occurred approximately 14,000 light years away from us and released 2.0 $\times$ 10⁴⁶ J of energy in a sudden burst of light,how much energy would enter one of your pupils? Assume the diameter of a pupil to be about 4 mm.(For comparison,our Sun radiates approximately 4 $\times$ 10²⁶ J/s.)

A) 1.1 J
B) 3.0 $\times$ 10²³ J
C) 3.5 J
D) 4.6 J
E) 2.2 J