Never before had the editors faced so many challenges at once as they had in compiling the 22nd annual compendium of the Archeological society of North America.
A. so many challenges at once as they had in
B. at once as many challenges as
C. at once as many challenges that they were when
D. as many challenges at once as they confronted in
E. so many challenges at once that confronted them in
[spoiler]
What is the diff between A and D. Please dont say that so...as is not a preferred idiom. There are a couple of instances where GMAT has used this construction[/spoiler]
A. so many challenges at once as they had in
B. at once as many challenges as
C. at once as many challenges that they were when
D. as many challenges at once as they confronted in
E. so many challenges at once that confronted them in
[spoiler]
What is the diff between A and D. Please dont say that so...as is not a preferred idiom. There are a couple of instances where GMAT has used this construction[/spoiler]
