Thanks for the question! So we’re asked here to understand what “capricious enforcement” means, and we’re given a line. So we should go to line 32 and read a bit before and after that line in order to understand what exactly the full context is. So we’re basically told that we shouldn’t worry too much about capricious enforcement, since legislative oversight makes sure that the agency doesn’t stray too far from the intended regulation being enforced. In other words, capricious enforcement is something that’s going to happen when the agency does stray too far from the intended regulation being enforced. And this is how we can see that (E) is the correct answer choice, since capricious enforcement is talking about enforcing a legal rule by not following the intent of the legislature in enforcing the law.
Hope this helps! Feel free to ask any other questions that you might have.