GMAT的一道语法题The financial crash of October 1987 demonstrated t

GMAT的一道语法题
The financial crash of October 1987 demonstrated that the world's capital markets are integrated more closely than never before and events in one part of the global village may be transmitted to the rest of the village-- almost instantaneously.
A.integrated more closely than never before and
B.closely integrated more than ever before so
C.more closely integrated as never before while
D.more closely integrated than ever before and that
E.more than ever before closely integrated as
以下是OG的解释
Choice D,the best answer,produces a clear sentence in which parallel structure (two clauses introduced by that) underscores meaning:the crash demonstrated [1] that markets are integrated and [2] that events may be transmitted.The other choices lack this parallel structure and contain additional faults.The phrases more...than never in A and more ...as never in C are both unidiomatic:the idiom is more than ever.Choices B,C,and E end with so,while,and as,respectively:and that is needed so that two parallel clauses may be properly joined.Finally,B and E misplace the adverb more,which here should come just before closely:closer,not more frequent,integration of the world's capital markets is what facilitates the transmission of economic events.
我想请问一下这道题从哪里可以看出是一个平行结构呢,我觉得后半句从events开始应该是属于对前半句现象的一个解释说明呀,怎么能用and that链接呢,我当时选的是B,我觉得以so结尾更合逻辑,尽管解释里说more than的位置不好,但是我觉得D的逻辑不好所以当时就没选.很纠结这道题,
还有一个问题,我这一段做OG10,感觉好像比11和12难似的,10的正确率只有73%,让我一下子对SC丧失了信心,很多题都是单纯考习语的,我恰恰习语这一块没下功夫背...因为10是很早的版本了,请问现在的考试还在延续10的思路吗,我做10对考试的帮助会很大吗,

1987年的金融危机说明：世界金融市场比以往任何时候都联系得更紧密；在地球村的一个地方的事件几乎瞬间就会传到其他地方.
that the world's capital markets are integrated more closely than never before 和events in one part of the global village may be transmitted to the rest of the village-- almost instantaneously这两个宾语从句是并列关系啊.用and最合适.
在被动语态中,行为动词如果有副词修饰,副词应当放在助动词be的后面,行为动词的前面.试比较：
We think highly of him.
He is highly thougt of.
所以,D项的(are) more closely integrated than ever before 优于A项的(are) integrated more closely than never before .
第二个问题：
语言是处于不断变化当中的,特别是世界性的语言——英语.而英语中,尤其是习语变化快.建议你使用最新的版本.