Given a single resource constraint $($and no demand constraints$),$ the optimum short$-$term product$-$mix for a two$-$product firm $\_\_\_\_\_\_.$

Multiple choice question.

will occur at one of the two end points of the iso$-$production line associated with the constraint

can be determined using multiple$-$regression techniques

cannot be determined without information regarding the total budgeted fixed costs for the upcoming period

cannot be determined without information regarding the selling price per unit for each of the two products