2016-17 Common application Education Interruption

As most of you know, the common application is now open…and I already have a question lol…

How do you explain the reason for an education interruption. I will be graduating early. ( This is probably something my guidance counselor could assist me with) but I’d like to hear from other high-school students who may have an education interruption ( graduating early, taking a gap year…etc etc)

any tips?