Beat The GMAT

nhai2003 · Sun Jul 05, 2009 9:21 pm

Unlike emergency calls that travel through regular telephone lines, where they thus automatically inform the operator of the location and phone number of the caller, cellular calls require emergency operators to determine the location of the caller.
(A) lines, where they thus automatically inform the operator of the location and phone number of the caller, cellular calls require emergency operators to determine the location of the caller
(B) lines and thus automatically inform the operator of the location and phone number of the caller, cellular calls require emergency operators to determine the location of the caller
(C) lines, thus automatically informing the operator of the location and phone number of the caller, the location of the caller on a cellular phone has to be determined by the operator
(D) lines, and thus automatically inform the operator of the location and phone number of the caller, emergency operators have to determine the location of the cellular phone caller
(E) lines, thus automatically informing the operator of the location and phone number of the caller, emergency operators receiving a cellular call have to determine the location of the caller

Please help me with this one
Thanks!

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blackarrow · Sun Jul 05, 2009 9:32 pm

Will go with B

Unlike X, Y

Please post the OA

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nikhilgirdhar · Sun Jul 05, 2009 9:45 pm

yeah...definitely B.

In A where they thus is awkward
Idiom used is Unlike XY : X(emergency calls) should be compared with Y(cellular calls), so we can eliminate C, D and E