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Min $c$:$2x1+1x2$

$(s.t)11+22400$

$11,140$

$1280$

Using a ruler draw a graph using a scale of $2cm=40$ units for both $x1$ and $x2$ axes. Based on the above formulation, what is the optimal solution:

Select one:

$$ A$.x1=140,x2=130$

$$ B$.x_1=140,x_2=80$

C$.x_1=240,x_2=80$

$$ D$.x_1=160,x_2=120$