求问gmatclub上一道700level的题，网上没有找到解释，求各位NN指教

哑舍

A year advantage in a new computer product or process being introduced can give a company a significant edge on its competitors.
a. A year advantage in a new computer product or process being introduced
b. Introducing a new computer product or process by a year earlier
c. A year's advantage to introduce a new computer product or process
d. To introduce a new computer product or process by a year earlier
e. Being a year ahead in introducing a new computer product or process
在网上没有找到解释，gmatclub上给的答案是D,不太明白为什么，我选的是E理解为，AC选项都是advantage做主语，其他为修饰成分，而优势给公司带来巨大优势，显然逻辑不通；BD同理主语为intrduce，而介绍给公司带来巨大优势，也不合逻辑；E中主语为提前一年，提前一年给公司带来巨大优势，正符合题目想要表达的意思，所以我选了E   跪求各位NN指正，欢迎大家讨论！！！！

VincentFSJ

帮顶，同不明白，我选了B

hazelann

请问gmatclub要用什么邮箱注册呀？我hotmail，qq，163都试过都不行。。
题目也找不到在哪里TT
求助TT

lfzlxm

【BD同理主语为intrduce，而介绍给公司带来巨大优势，也不合逻辑】
我认为BD是合逻辑的。 因为这里的主语不是intrducing/to intrduce，而是Introducing/To introduce a new computer product or process by a year earlier
抓句子主干来辅助理解句意当然没问题，我们去掉non-essential modifier不会对句意产生太大影响，去掉essential modifier就已经会对句子有一定的影响了， 而楼主去掉的【a new computer product or process by a year earlier】可是实打实的句子主干，所以不可取。
我个人是比较想选B的，求解为嘛B不对= =

Onlylovezy

RON: i can guarantee you it's not on GMAt prep

i'm going to take the liberty of having this "Brutal SCs" document added to the banned source list, since just about everything i've ever seen from it is horribly flawed.

ignore this question (and this source). move on.