What Is the Optimum Job Sequence for the Jobs Listed

Multiple Choice

What is the optimum job sequence for the jobs listed below using Johnson's rule? $$\begin{array}{l}\text { Processing time (hrs) }\\\begin{array} { c c c } \text { Job } & \text { Center 1 } & \text { Center 2 } \\\hline \mathrm { d } & 13 & 23 \\\mathrm { e } & 23 & 13 \\\mathrm { f } & 16 & 18 \\\mathrm {~g} & 20 & 17\end{array}\end{array}$$

A) e-g-f-d
B) d-g-f-e
C) d-f-g-e
D) e-d-f-g
E) f-e-d-g