[求助]OG73并列问题请教

73. The British Admiralty and the War Office met in March 1892 to consider a possible Russian attempt to seize Constantinople and how they would have to act militarily to deal with them.

(A)  how they would have to act militarily to deal with them

(B)   how to deal with them if military action would be necessary

(C)  what would be necessary militarily for dealing with such an event

(D)  what military action would be necessary in order
                    to deal with such an event

(E)   the necessity of what kind of military action in
                    order to take for dealing with it

答案为D

请问大家a possible Russian attempt to seize Constantinople and what military action would be necessary in order
                                        to deal with such an event

这不是名词和句子的并列么?这似乎不符合并列的习惯啊?

请指教!

這題似乎由代詞下手會比較好做，而且由題意，後面的並列都當consider的受詞，我是這樣理解的

后面what引导的不是句子，是what引导的短语，相当于名词。

例如：what i want is a happy life

what is difficult to understand id the noun ……

lz参考。

e为啥不对阿  不明显是名词么

我不太明白这是什么结构，为什么有主谓还是名词短语呢，请指教，谢谢！

不好意思这几天忙着攻克阅读呢，所以没来。

what i want 实际上等于something that i want,something肯定不能是句子了，忘记了吗？