Question about the waitlist

I was confused when going to make the deposit to reserve my seat for spring admissions if need be. The form asks for my entry term and I am given the option for either fall 2015 or spring 2016 admission. Now since on the wait list, with fall being my first choice, do I select that as my entry term? Or do I select spring 2016 admission as that is what I was accepted to, while fall is still unknown?

I had the same question and called the office of admissions and they told me to put spring 2016.