For the jobs listed below, which processing sequence would result using Johnson's Rule?

Job

Centre $1($Processing time$)$

Centre $2($Processing time$)$

a

$6$

$11$

b

$12$

$7$

c

$5$

$9$

d

$10$

$8$

Question $40$ options:

A$)$ c$-$a$-$d$-$b

B$)$ b$-$d$-$a$-$c

C$)$ a$-$b$-$c$-$d

D$)$ d$-$c$-$b$-$a

E$)$ c$-$a$-$b$-$d