Last in Line

Say a list is stored in a variable named lst, and assume that the list isn’t empty (it has at least one element in it).

## Which expression will return the **last** element in the list? > (A) returns the first element. (B) will raise an error (index out of range). (C) will also raise an error (unsupported operand). (D) works, as would `lst[-1]`. 1. [ ] `lst[0]` 2. [ ] `list[len(lst)]` 3. [ ] `lst[len(lst - 1)]` 4. [x] `lst[len(lst) - 1]` 5. [ ] None of the above