coefficients, Cost Reduction Indexes $($i$.$e$.,$ reduced costs$),$ Stepping$-$Stone Path and the new allocation. Answer questions $17$ through $25.$

Table $4$

$\backslash$table$[[\backslash$table$[[$Sources or$],[$Supply Points$]],$Demand Points or Destinations,supply$],[$BOSTON$,$CHICAGO,DAYTON,RICHMOND$],[$BEDFORD$,\backslash$table$[[2\mathrm{.}000],[130]],3\mathrm{.}000,\backslash$table$[[4\mathrm{.}000],[110]],5\mathrm{.}000,240],[$NORFOLK$,\backslash$table$[[3\mathrm{.}000],[120]],8\mathrm{.}000,7\mathrm{.}000,\backslash$table$[[2\mathrm{.}000],[200]],320],[$DETROIT$,2\mathrm{.}000,\backslash$table$[[2\mathrm{.}000],[300]],\backslash$table$[[5\mathrm{.}000],[40]],7\mathrm{.}000,340],[$demand$,250,300,150,200,]]$

$(17)$ The total cost of the current allocation $($i$.$e$.,$ shipping schedule$)$ is:

$($a$)$ $$2880$

$($b$)$ $$2140$

$($c$)$ $$2260$

$($d$)$ $$2730$

$($c$)$ none of the above

$(18)$ The value of coefficient $u_3$ is equal to:

$($a$)1$

$($b$)5$

$($c$)-1$

$($d$)3$

$($c$)$ none of the above

$(19)$ The value of coefficient $v_2$ is equal to:

$($a$)1$

$($b$)4$

$($c$)-2$

$($d$)2$

$($c$)$ none of the above

$(20)$ The cost reduction index of cell $(1,4)$ is: $($a$)2$

$($b$)4$

$($c$)6$

$($d$)5$

$($e$)$ none of the above