GMAT Prep Question

[RichaChampion]

The British Admiralty and the War Office met in March 1892 to consider a possible Russian attempt to seize Constantinople and how they would have to act militarily to deal with them.
(A) how they would have to act militarily to deal with them
(B) how to deal with them if military action would be necessary
(C) what would be necessary militarily for dealing with such an event
(D) what military action would be necessary in order to deal with such an event
(E) the necessity of what kind of military action in order to take for dealing with it


I couldn't understand why and how the usage of idiom is correct in D.

Idiom is:
Consider X and Y

[RonPurewal]

is this question from the free GMAT PREP software?

if so, please search the forum for an existing thread. (the problems in the free software have all been around for many years, so almost all of them already have discussion threads.)

if there is no existing thread, could you please kindly post a screen shot of the problem from the free software?

thanks.

[RichaChampion]

Ron sir,

It is from GMAT question pack1. No convincing solution is available on other forums. Thats the reason I posted. 99% time my all preparation has relied on the solution given by you!

[RonPurewal]

well, thanks for your honesty, but the rules are still the rules. GMAC is pretty hawkish about its copyrights, and, legalities aside, we don't want to spoil our professional relationship with GMAC.