According to its engineers, a new kind of self-driving car could

Question

According to its engineers, a new kind of self-driving car could, by using multiple sensors and formal logic-based algorithms, provide taxi services in major American cities within the next five years.

A. According to its engineers, a new kind of self-driving car could, by using multiple sensors and formal logic-based algorithms, provide taxi services in major American cities within the next five years.
B. By using multiple sensors and formal logic-based algorithms, engineers of a new kind of self-driving car think it could provide taxi services in major American cities within the next five years.
C. A new kind of self-driving car could provide taxi services in major American cities within the next five years, according to its engineers, with it using multiple sensors and formal logic-based algorithms.
D. A new kind of self-driving car, say its engineers, could provide taxi services in major American cities within the next five years because of its multiple sensors and formal logic-based algorithms.
E. According to its engineers, using multiple sensors and formal logic-based algorithms make it possible that a new kind of self-driving car could provide taxi services in major American cities within the next five years.

TaN1213 · Answer

According to its engineers, a new kind of self-driving car could, by using multiple sensors and formal logic-based algorithms, provide taxi services in major American cities within the next five years.

A. According to its engineers, a new kind of self-driving  car  could,  by using multiple sensors and formal logic-based algorithms , provide taxi services in major American cities within the next five years.  Correct 
B.  By using multiple sensors and formal logic-based algorithms, engineers  of a new kind of self-driving car think it could provide taxi services in major American cities within the next five years.  - implies the engineers are using multiple sensors. Intended meaning is that the car can use the additional stuff to provide taxi service.....Engineers only think that this improvement is attainable. 
C. A new kind of self-driving car could provide taxi services in major American cities within the next five years, according to its engineers,  with it  using multiple sensors and formal logic-based algorithms.
D. A new kind of self-driving car,  say  its engineers, could provide taxi services in major American cities within the next five years because of its multiple sensors and formal logic-based algorithms.
E. According to its engineers,  using  multiple sensors and formal logic-based algorithms  make it possible  that a new kind of self-driving car could provide taxi services in major American cities within the next five years.

globaldesi · Answer

Can someone explain why "by using ... " In A is correct. The sentence is separated by it main noun.
Whereas in D it is much clearer

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sayan640 · Answer

Bunuel   GMATNinja  official explanations ?

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Bunuel · Answer

I was able to find the following explanations from Ready4GMAT:

This sentence doesn’t sound wrong, but let’s look at the answer choices anyway. We’ll keep in mind that what we have is pretty good, so we can discard any answers that don’t improve upon the original, which is (A).

Is (B) better? No, because it implies that the engineers use multiple sensors and algorithms, when in fact it’s the car doing that.

Choice (C) gets off to a decent start but “with it using” is stylistically poor writing.

Choice (D) is also not a good choice; the word “because” is confusing there, since it doesn’t draw a clear cause and effect relationship. Because the car has multiple sensors and certain algorithms, that means it could provide taxi service in the next five years? That’s not a sensible conclusion.

Choice (E) is wordy and confusing. We’ll stick with what we have, which is a clear and well-written sentence.

The correct answer is Choice (A).

jg1AN-N-rUY

Hope it helps.

sanjitscorps18 · Answer

A. According to its engineers, a new kind of self-driving car could, by using multiple sensors and formal logic-based algorithms, provide taxi services in major American cities within the next five years.
--> Could be optimized further but looks okay

B. By using multiple sensors and formal logic-based algorithms, engineers of a new kind of self-driving car think it could provide taxi services in major American cities within the next five years.
--> Suggests that sensors are being used by engineers. Incorrect

C. A new kind of self-driving car could provide taxi services in major American cities within the next five years, according to its engineers, with it using multiple sensors and formal logic-based algorithms.
--> No clear referent of "it", is it car, taxi service, cities??? "according to its engineers" is incorrectly placed.

D. A new kind of self-driving car, say its engineers, could provide taxi services in major American cities within the next five years because of its multiple sensors and formal logic-based algorithms.
--> Incorrect relationship for "because" since it gives a nonsensical meaning to the sentence.

E. According to its engineers, using multiple sensors and formal logic-based algorithms make it possible that a new kind of self-driving car could provide taxi services in major American cities within the next five years.
--> SV error here. Using would require "makes" or it should be "has made it possible" if the cars are providing taxi services now. Else "would make it possible", which complies more with the future possibility indicated.

Option A

According to its engineers, a new kind of self-driving car could

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According to its engineers, a new kind of self-driving car could

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