疑似USC AD

Your application for admission to the University of Southern California has been received and reviewed. I am pleased to inform you that you are academically eligible for admission to the Fall 2012 semester as a graduate student majoring in Electrical Engineering leading toward a Master of Science; however, your application is not yet complete.

In order to comply with U.S. Visa regulations, you must provide an affidavit of financial support before an I-20 or DS-2019 can be issued to you. If you are being sponsored by your home government or other agency, we require a current letter be addressed to USC specifying the terms of the award. If you have been awarded a scholarship or assistantship from USC, contact your department to submit your award information directly to the Graduate Admissions office.

请问各位，这个是不是AD啊。。。

如果是的话，求问USC和UCI的AD怎么选择？