What function does the 'Decide' step in the decision-making model serve?

The 'Decide' step in the decision-making model serves to select the best alternative or solution to a problem. This step comes after the problem has been identified and alternative solutions have been generated. Option A is incorrect because identifying the problem is the first step in the decision-making model. Option B is incorrect because generating alternative solutions is a step before the 'Decide' step. Option D is incorrect because evaluating the decision's effectiveness is a later step in the decision-making model. The 'Decide' step is crucial in the decision-making process as it involves carefully considering and choosing the most optimal solution to the problem at hand.