SC: Forward-thinking business leaders

[GK]

Forward-thinking business leaders can now install technologically sophisticated communication systems quickly enough so as not to lose information in a lengthy conversion.

a)
b) that information is not lost
c) so that there is no lost information
d) and thus not lose information
e) and this way there is no information lost

This stuff is killing me! I think I got confused b/w 'so X as to Y' and 'so as to'. I picked A but answer is B. Can you please explain why A is wrong and why B is right? Thanks.

Source: Princeton Review Online Test

[RonPurewal]

you can't mix enough with so as to, as doing so creates redundancy. you must pick one of those constructions, as they're approximately equivalent**; you're forced to choose the former because it isn't underlined.

(analogy: you could say the plaintiff's case is stronger than that of the defendant or ...than the defendant's, but you cannot say ...than that of the defendant's.)

**they're not exactly equivalent - 'so ... as to' usually implies that whatever is being described is extreme in some way, whereas 'enough' usually implies that it's merely sufficient - but they're equivalent enough that you can't use both in the same construction.

[GK]

Thanks Ron.

[kvitkod]

I cannot understand why D is wrong? Could smb explain.

thanks

[tim]

You can't simply say that something is done quickly enough. It has to be done, for instance, quickly enough to do something or quickly enough that something happens or quickly enough for a particular purpose. D does not have the follow-up that would be required to justify use of "quickly enough"; instead, it just ends the clause with the word "enough"..