Hi All,

In one of the VIP GMAT test(VIP Test#3, Q39) the following question was there. In that test the OA is "D". But when I checked on the net the OA is "A".

The reason for kicking out "A" is given as "The comma that follows "and" should precede it in order for the conjunction to properly coordinate the two clauses.

Can some one please tell that "comma before and = wrong" theory holds any ground in GMAT ? If this is not the case...then probably I will have to look for other similar learnings that I have done from that source

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Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.

A. Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less,
B. Minivans, which carry as many as seven passengers, compared with most sport utility vehicles, they cost less,
C. Minivans carry as many as seven passengers, in comparison with most sport utility vehicles, and have a lower cost, they
D. Minivans, carrying as many as seven passengers, compared with most sport utility vehicles, cost less,
E. Minivans, which carry as many as seven passengers, compared with most sport utility vehicles the cost is lower, and they

Thanks
Mohit