In Britain today women ________ 44% of the work force,and nearly half the mothers with children are in paid work.?

A.build up                                  B.stand for

C.make up                           D.go up

In Britain today women ________ 44% of the work force,and nearly half the mothers with children are in paid work.

1. A.
   build up
2. B.
   stand for
3. C.
   make up
4. D.
   go up