Question about application!

<p>I already submitted Part I of the Brown app and I just realized that I want to change my area of concentration from Economics to the new concentration, COE. I didn’t see it on the list when I was filling out the app, but I just checked it and somehow it’s now there. How would I go about changing this? Do I have to call the admissions office, or can I just e-mail them about it?</p>