Read the recipe. Macaroni and Cheese

[1] Cook 1 pound of macaroni according to the directions on the package. [2] Meanwhile, melt 1/4 cup of butter in a medium saucepan on medium heat. [3] Add 1/4 cup of flour, stirring to combine. [4] Add 1 teaspoon of Worcestershire sauce, 1/4 teaspoon of seasoned salt, 1/8 teaspoon of black pepper, and 2 cups of milk. [5] Whisk the sauce until it is smooth and has no lumps; then add 2 cups of shredded cheese and stir until the cheese is melted. [6] Drain the cooked pasta and add the cheese sauce to the pasta. [7] Mix it together and spread it in a baking dish. [8] Top with breadcrumbs and bake at 350°F for 20 minutes.

Which revision would make the instructions easier to follow?

adding an initial step to specify how to cook the pasta
breaking step 5 into two separate steps for whisking and adding cheese
specifying what kind of milk to use in step 4
inserting a step with instructions to get a strainer for the cooked pasta