Can you please explain why B is wrong? OA is E

The use of chemical pesticides in this country is equally extensive or more so than ten years ago.

(A) equally extensive or more so than ten years ago
(B) equal to or more extensive than ten years ago
(C) as extensive as ten years ago or more
(D) equal to, if not more, than ten years ago
(E) as extensive as it was ten years ago, if not more

1. Comparison between --> use of chemical today vs use of chemical 10 years ago
2. I would forget about more so for some time..
3. I want want a sentence similar to "USE today is as extensive as IT WAS ten years ago"


(A) equally extensive or more so than ten years ago
>> comparing use with ten years ago
(B) equal to or more extensive than ten years ago
>> same as A
(C) as extensive as ten years ago or more
>> same problem
(D) equal to, if not more, than ten years ago
>> equal to 10 years ago -- same problem
(E) as extensive as it was ten years ago, if not more[/quote]
--> correct compares use today with what it was 10 years ago

The use of chemical pesticides in this country is equally extensive or more so than ten years ago.

(A) equally extensive or more so than ten years ago
(B) equal to or more extensive than ten years ago
(C) as extensive as ten years ago or more
(D) equal to, if not more, than ten years ago
(E) as extensive as it was ten years ago, if not more so

IMO: E