The one that would be in the front is Anniversary because both anniversary and annual have the same three beginning letters but their 4th letters should be compared and I comes before U which makes Anniversary first
Explanation: "i" comes before "u" so anniversary would come before annual. With these kinds of questions you just start from the first letter and if there are multiple options that start with the same letter that would come first, move on to the next letter, if those are the same, move on to the next letter, etc.