This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to revert an edit on a wikia wiki
Click on an article which has been affected by a destructive edit.
On the right of the article's title, you will see the edit box.
Click on the arrow on the right of the edit box and click' history' in the drop-down menu.

OPTIONS:
(I). You will now have accessed the article's history, which is a list of all of the article's edits. Click the word' undo' next to the bad edit.
(II). Go to the edit box and locate that article that has been affected by a destructive version of wiki. When you have retrieved the article, copy and paste it into the program.
(III). You will be taken to the current version of wiki. This was developed in the 1990s and is most likely corrupted by previous versions.
(IV). Right click on the article that has been affected by a destructive edit. Go to the edit dialogue box and click' edit' in the dialogue box.
The answer is:
(I).