(D) Device Type
(E) Final URL
You can use the first four audience variables mentioned above to target ads and keywords. You can target by Location like Country/Region and Ad language. You can target a specific time of the day, you can also target specific dates of the month, and most importantly you can target device types like Computer, Mobile, or Tablet.
This question is a part of the Microsoft Advertising Certified Professional exam. You can find all the answers with detailed explanation for this exam in the Microsoft Advertising Certified Professional exam page.