Calculate the diffusion coefficient for copper in aluminum at 600 degree Celsius. Preexponential and activation energy values for this system are 6.5 x 10^-5 m^2/s and 136,000 J/mol, respectively.
(A) 5.7 x 10^-2 m^2/s
(B) 9.4 x 10^-17 m^2/s
(C) 4.7 x 10^-13 m^2/s
(D) 3.9 x 10^-2 m^2/s