activities in manufacturing: fabrication $($FAB$),$ and final assembly $($FINAL$).$ The hours per unit and the total amount of time available each week for each activity is provided in the table below. The profit for products AAA and $BBB$ is $$375$ per unit and $$200$ per unit, respectively. BAK must produce at least $80$ units in total each week.

BAK wishes to determine the mix of products AAA and $BBB$ that maximizes the profit.

$\backslash$table$[[$Product$,\backslash$table$[[$FAB$],[($hours$/$unit$)]],\backslash$table$[[$FINAL$],[($hours$/$unit$)]]]]$

AAA $32$

BBB $21$

Total Weekly Hours

Available

$240$

$140$

Assume the symbols A and $B$ represent the decision variables corresponding to products AAA and $BBB,$ respectively.

Which of the following are constraints in the BAK product mix optimization problem formulation?

$1**A+1**B80$

None of the answers are correct.

$1^{**}A+0^{**}B80$

$3^{**}A+2^{**}B140$

$2^{**}A+1^{**}B140$