57辆军车排成一列通过一座桥，前后两车之间都保持2米的距离。桥长1403米，每辆军车长5米，车队每分钟前进45米。从第一辆车的车头上桥到最后一辆车的车尾离开桥共需多少分钟？

Now that she is out of a job, Lucy ______ going back to school, but she hasn’t decided yet.

A．had considered

B．is going to consider

C．has been considering

D．considered