Google has loads of commercials guidelines for their AdWords system. When you’re looking to buy traffic to a URL, you are looking to make sure they’re going to allow ads to work, that means you have to be in compliance with all of those quite a lot of policies. Given that there are tons of of particular person policies, most cost effective business owners can’t be troubled to read and take into account all of them. Sure, that you can hire out your ad control to an individual who does, but that’s an added cost.
You can just try to guess and roll with it, but that’s more likely to end up with a lot of trial and error. The best choice is to take what you know, take your intended ads, and ask questions on what may be lacking between the 2.