The interviewer would like to know the probability of you enrolling in their program if you have been screened. When answering this question, list the various schools you have applied to (if any). The best way to answer would be to rank your choice of preferences- you can put their school on top of your list. You can say, "I have applied to five schools which I felt offer the best programs, while this school is the top on my list," and then list the other schools in order of preference.