what is the difference between a "Set Cover" optimization problem and a "Max Cover" optimization problem?

Group of answer choices

A "Max Cover" optimization problem has nonlinear constrants, but a "Set Cover" optimization problem has linear constraints.

These are both optimization problems for allocating resources, but they have different objective functions.

There is no difference between the objective function, constraints, or decision variables for these two types of optimization problems.

The decision variables in a "Set Cover" optimization problem are binary, but the decision variables in a "Max Cover" optimization problem are continuous.