GWD Q19

In Hungary, as in much of
  Eastern Europe, an overwhelming proportion of women work, many of which are in  middle management and light industry.

A as in much of Eastern Europe, an overwhelming proportion of women work, many of them in 

B like much of Eastern Europe, an overwhelming proportion of women work, many  are in

答案是A.但是A不是缺少谓语吗?

谢谢!

In Hungary, as in much of Eastern Europe, an overwhelming proportion of women work, many of which are in  middle management and light industry.

work 是谓语。