The commission studying mass transportation suggested that

Question

The commission studying mass transportation suggested that the Metropolitan Transit Authority hold off purchasing new subway cars and spend money instead===>
on preventive maintenance of all cars, on repairs of substandard cars, on crime prevention in all stations, and on better lighting for the busiest stations.

When we have the comma and "and", we are trying to insert a clause after it.
IC,and IC.

I don't agree with comma, it breaks the structure.

A. on crime prevention in all stations and better lighting for the busiest stations
B. on crime prevention in all stations, and better lighting for the busiest stations
C. on crime prevention in all stations and for better lighting in the busiest stations
D. on crime prevention in all stations, and on better lighting for the busiest stations
E. on the prevention of crime in all stations and for better lighting in the busiest stations

huntgmat · Answer

I would say D , but there is one problem in D

The commission studying mass transportation suggested that the Metropolitan Transit Authority hold off purchasing new subway cars and spend money instead===>
  on preventive maintenance of all cars  ,   on repairs of substandard cars  ,    on crime prevention in all stations     ,   and    on better lighting for the busiest stations  .

When we have the comma and "and", we are trying to insert a clause after it.
IC,and IC.

I don't agree with comma, it breaks the structure.

In-fact no other Q have good ||.

Whats the source of the Q.

bhatiagp · Answer

D for parrallelism.

Hunt .. didnt get your messgae on the " ," . Can you explain ?

gmatcrook · Answer

Same here... chose D for parallelism, but D is  not  the OA.

clubzzang · Answer

Is this q from brutal sc??? Narrowed down to A or C. Regardless of the OA to be posted, this q is very tricky. Natural selection is D and even on test day, I will surely go for D. But on a second thought, D is quite not right in a sense. Maybe it's because crime prevention could take a form of better lighting for the busiest stations. Rather, with this in mind, I went for A, but not sure at all.

alpha_plus_gamma · Answer

IMHO, comma before last "and" is correct we are *listing* actions, the last in the list is usually written with ",and..."

About the answer, I think C should be corerct (though I would have chosen D on real GMAT)

If we have to use "on" before every action, we can write

The commission studying mass transportation suggested that the Metropolitan Transit Authority hold off purchasing new subway cars and spend money instead===>
on preventive maintenance of all cars, on repairs of substandard cars, on crime prevention in all stations, and on better lighting for the busiest stations.

When we have the comma and "and", we are trying to insert a clause after it.
IC,and IC.

I don't agree with comma, it breaks the structure.

Since the sentence uses on separaely for every action, it can be a hint to use "for" for the last action.

Just a guess though!

huntgmat · Answer

OK guys. I must have been insane while solving this Q.
Sometimes we just walk the edge and fall !!!!

Anyways, YES the last comma is indeed necessary. First look in the Q and a long phase after ",and" without a subject ? It messed me up. MY APOLOGIES.

Now why D is NOT OA ????

lexis · Answer

List of things. Need AND that follows the last COMMA. Only B and D survive. 
If it is real GMAT exam, I will choose D. But you said D is not the OA, B may be correct answer.

aviator83 · Answer

IMO (E) is correct. 
note the parallelism -
spend money instead on preventive maintenance  of  all cars, on repairs  of  substandard cars, on the prevention  of  crime in all stations and for better lighting in the busiest stations.
"crime prevention in all stations" doesnot follow parallel structure. Also, "on better" is unidiomatic here.

gmatcrook · Answer

Well the OA is in fact E here.

I don't have the OE for this.

After seeing the OA all I could figure out was that "better lighting  in  the busiest stations" sounds grammatically correct and I'm not sure whether "crime prevention" is correct.

rohit929 · Answer

yes e in fact is parallel

preventive maintenance of all cars
repairs of substandard cars
 the prevention of crime in all stations

here prevention is required to be parallel

prateek11587 · Answer

I dont get it..how can E be parallel?
it says 'FOR BETTER LIGHTING'..IT CANNOT BE || TO 'ON..."
PLS C IF U CAN GET D OE?
THX

gmatcrook · Answer

Hi everyone, I have the right OA with me.
Sorry, if I have been late to respond. Even I, just now received a confirmation on this.

The OA is indeed D for the reason of parallelism. 
Its was wrongly printed as E. Hate when that happens.

The commission studying mass transportation suggested that

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