Multi-choice problem: Choose from the options at the end, and answer how do you do this: How to Make Creamy Mac and Cheese

OPTIONS: (a). To add cheese to sauce for Creamy Mac and Cheese, fold shredded cheese into slightly thickened sauce until the cheese is thoroughly melted and smooth. Turn up the heat to high.; (b). To add cheese to sauce for Creamy Mac and Cheese, fold shredded cheese into slightly thickened sauce until the cheese is thoroughly melted and smooth. Turn off the heat.;
(b).