what nationality is (she or her)? what is the right answer?t

題目：

what nationality is (she or her)? what is the right answer?thanks a lot

解答：

正確答案：當然是she.這裡是主語啊.
這是問國籍的常用句.
也就是 where dose she come from?
where is she from?
這麼好的回答,不給分嗎 ：）））