[单选题]
08.12: In one year, ther, az6m-vaih /zm7fa, me vd p l zb7-s yta:.fy(rfqlrj6/(xk;8are approximately $31.5 \times 10^7 \; s$, Which of the following representations using metric prefixes is equivalent to this value?
A. 31.5 ks
B. 31.5 Ms
C. 31.5 Gs
D. 31.5 ms
E. 31.5 ps