问题
Airplane design is a job ______ you to work 10 to 12 hours a day and sometimes seven days a week. —_______. I think airplane design needs good teamwork as well. [ ]
A: that need; So it is
B: that needs; So it is
C: which needs; So is it
D: which need; So is it
B: that needs; So it is
C: which needs; So is it
D: which need; So is it
正确答案是：
