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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## Tough one! ##### This topic has 3 member replies ## Tough one! Studies of the human "sleep-wake cycle" have practical relevance for matters ranging from duty assignments in nuclear submarines and air-traffic control towers to the staff of shifts in 24-hour factories. (A) to the staff of (B) to those who staff (C) to the staffing of (D) and staffing (E) and the staff of Master | Next Rank: 500 Posts Joined 14 Jun 2008 Posted: 215 messages Followed by: 1 members Upvotes: 13 Test Date: Nov 2011 Target GMAT Score: 780 GmatKiss wrote: Studies of the human "sleep-wake cycle" have practical relevance for matters ranging from duty assignments in nuclear submarines and air-traffic control towers to the staff of shifts in 24-hour factories. (A) to the staff of (B) to those who staff (C) to the staffing of (D) and staffing (E) and the staff of from X to Y ...rules out D,E X and Y need to be parallel X is "duty assignments in nuclear submarines and air-traffic control towers" so Y can not be people or staff...so that rules out A,B IMO C please give OA. _________________ If my post helped you- let me know by pushing the thanks button. Thanks Legendary Member Joined 20 Dec 2008 Posted: 540 messages Followed by: 6 members Upvotes: 37 I think C should be the ans _________________ This time no looking back!!! Navami Master | Next Rank: 500 Posts Joined 07 Jun 2011 Posted: 496 messages Followed by: 1 members Upvotes: 38 Idiom use - from x to y From duty assignments to the staffing of... Both are noun phrases • Free Practice Test & Review How would you score if you took the GMAT Available with Beat the GMAT members only code • FREE GMAT Exam Know how you'd score today for$0

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