For a static's problem your calculations show the final answer as $12345\mathrm{.}6N.$ What will you write as your final answer? Explain your answer.

A$)12345\mathrm{.}6N$

B$)12\mathrm{.}3456kN$

C$)12kN$

D$)12\mathrm{.}3kN$

E$)123kN$