Fill in the blanks: The acronym D.R.Y in the "DRY principle" stands for Don't Yourself. An interactive function lets you choose the value of an input to the function using a . The name of the input variable doesn't matter; all that matters is that the variable isn't the same as another pre-existing and how you use it in your program. It's helpful for humans to use descriptive variable because it makes code easier to understand. Fill in the blank: One rule of scope is that you can't access variables defined in a later line of code outside the function inside another function in another cell