（已解决）问一道GWD的语法，关于that的省略和伴随状语的逻辑主语问题

洛洛洛洛

The electronics company has unveiled what it claims to be the world’s smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs less than 11 ounces.



A.to be the world’s smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs两个it不同的指代

B.to be the smallest network digital camcorder in the world, which is as long as a handheld computer, weighing

Weighing的主语是company，不对，应该是产品

C.is the smallest network digital camcorder in the world, which is as long as a handheld computer, and it weighs

D.! is the world’s smallest network digital camcorder, which is as long as a handheld computer and weighs

E.is the world’s smallest network digital camcorder, the length of which is that of a handheld computer, weighing

这个是GWD的解释

我想问，C\D\E选项这个is是不是从句的谓语啊？那What it claim就是从句的主语？那这句话里，The electronics company has unveiled 后面是不是省略了that啊？这个That都可以省略吗？比如 ，indicate that....等

还有一个问题，就是伴随状语的逻辑主语是不是整句话的主语啊？
谢谢了先

洛洛洛洛

谢谢楼上的哈，对it claims完全了解了，哈～

venus2elva

是个嵌入式结构分句，

http://forum.chasedream.com/GMAT_SC/thread-417488-1-1.html?SearchText=OG12%20118%20C

这个帖子解释的很好。

pennyconan

这道我选D,
it claims 是插入语， it 指代company