what app is that? Can you give the whole question? Are there other questions? If it's the only question, then I give my whole "hey look at me, I did an MPH after college so I now know more than the average 21 year old college senior and you really should let me in" essay.
a few secondaries ask that question. essentially it's just for any info that you want to give that they didn't specifically ask for. i didn't see it as a required secondary question anywhere, but make sure it's optional before you decide you'd rather not answer it. use it to update them about stuff you've been doing, any changes in your status (however small/large) and in general anything else you want to update them with.