What is the energy of a 425 nm photon?

a) 2.82 x 10^-40 J
b) 1.6 x 10^-27 J
c) 4.67 x 10^-19 J
d) 4.67 x 10^-28 J

I don't get any of these answers. =S Please help...

See your other post above.