请教OG11－4！！！！！！

blackpetal

A survey by the National Council of Churches showed that in 1986 there were 20,736 female ministers, almost 9 percent of the nation's clergy, twice as much
    as 1977.
            

A)twice as much as 1977 B)twice as many as 1977 C)double what it was in 1977 D)double the figure for 1977 E)a number double that of 1977's

答案选D

我觉得D选项里的figure指代有歧义啊，文中出现了两个数字20,736 和9 percent ，为什么一定是指代前者呢？

rock19840717

almost.....是插入语修饰ministers的

blackpetal

可是没有规定说figure不能指代插入语中的词呀？

yaqi_svw

这道题我也有如上疑问
另外，D选项为什么可以用for 1977
谢谢，请解答