Respuesta :

xsouthlandx
12.3 x 10^-7 / 3.7 x 10^-5 / 6.2 x 10^-5 / 5.2 x 10^3

smallest ------- biggest

im not 100% sure though, so im so sorry if you get it wrong.
The answer is B. 
B<D<A<C is the answer just to make sure that you know