问题
ollege students are willing to work in Western China after graduation where, ______, more opportunities of employment are available.
A:as it is poor and backward
B:poor and backward as it is
C:poor and backward although it is
D:though poor and backward it is;
B:poor and backward as it is
C:poor and backward although it is
D:though poor and backward it is;
正确答案是：
