CR-Hack the GMAT

[sanyalpritish]

Engineers are attempting to make PX-1000 series cars more environmentally friendly by increasing their use of natural gases. One plan to accomplish this is to use organic waste to power cars. When organic waste decomposes, it releases fuel that is much more powerful than crude oil.

Which of the following, if true, would indicate the most serious weakness in the plan above?
(A) Some parts of the world do not generate enough organic waste to power a significant number of automobiles.
(B) All existing mechanisms to operate engines with fuel drawn from decomposed organic waste are too large to fit in automobiles.
(C) Even if organic waste proves to be an effective alternative to crude oil, some car owners will be reluctant to buy cars that run on this new fuel.
(D) Each year several million tons of organic waste decomposes but is not used to the full extent of its energy potential.
(E) Organic waste is more valuable as fuel to companies required to cut carbon emissions than to automobile drivers.

[tina_2c]

what is the OA?
is it B

[devenh]

in the question it is asking you to weaken "the plan", the plan is the first premise: "Engineers are attempting to make the PX-1000 series cars more environmentally friendly by increasing their use of natural gas."

Before I start reading the answer choices I'm thinking I need to find an answer choice that shows the cars cannot be made more eco-friendly by increasing their use of natural gas..maybe because the gas has a toxic by-product that is releases or something else along those lines.

A.) we don't care about the rest of the world. even if one PX-1000 car can be made less eco-friendly then the argument above is weakened.

B.) if engines can't fit in the car, then the PX-1000 series cannot be manufactured, that could be something to prevent us from making more eco-friendly cars.

C.) out of scope, we don't care whether everybody or nobody ends up buying one of these cars.

D.) this does not show how it affects the cars.

E.) this could be an answer, but we would have to make the extra leap by saying that organic waste is a scarce resource and that companies will use up all the organic waste leaving none available for cars. it is tempting, but we have to make too big a leap to justify this answer choice.

i would stick with B as the correct answer. good luck!

[StaceyKoprince]

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