定冠词的用法题

定冠词的用法题
As for reducing expenditure and job growth,we can't afford to do just one or（ ）
other,we've got to do（ ）both,Mr Obama said at a town-hall meeting in Illinois before the 2012 Presidential election．
A．the; the
B．不填；the
C．the;不填
D．不填；不填
选什么,求详解