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In linear programming, $q,$ is$/$are unknown values that represent the key factors an organization would like to control. In addition, $q,$ is$/$are a mathematical expression that can be used to determine the goal for a given solution.

Select one:

a$.$ parameters; objective function

b$.$ decision variables; objective functions

c$.$ decision variables; feasible solution space

d$.$ decision variables; constraints

e$.$ objective function; decision variables