GMATMadeEasy wrote:Brian - This is a little new insight to see B and e this way. So taking time to integrate it and to see how this can be applied to other questions.
Another GMAtprep that plays on pronoun :
There are hopeful signs that we are shifting away from our heavy reliance on fossil fuels: more than ten times as much energy is generated through wind power now than it was in 1990.
A) generated through wind power now than it was
B) generated through wind power now as it was
C) generated through wind power now as was the case
D) now generated through wind power as it was
E) now generated through wind power then was the case
Could you suggest on what grounds presence of "it" is wrong in this question ? I am trying to see different questions and relate the together so i am able to apply the same. Currently, not fully confident.

As much as 10 times of jute is manufactured now as was manufactured last year.
In this sentence i don't think we need IT. It simply compares the amount of jute manufactured at two particular time.
Coming to original question, We note the use of AS MUCH in non underlined part. SO we need another as in underlined part. Eliminate option A and E.
B) generated through wind power now as it was
C) generated through wind power now as was the case
D) now generated through wind power as it was
In option B and D, IT refers to what? the energy generated. If yes, then that means
AS was generated
and
AS it was generated
both are same. IN this case latter is wordy.
Also to maintain parallelism : as much X as Y
as much energy
is generated through wind power now AS
was the case in 1990.