A research study revealed that, in most cases, once existing highways near urban areas are widened and extended in an...

JayDee8732 on May 27, 2017

Why is B wrong?

Why is the answer A can you please explain?

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Mehran on June 1, 2017

@JayDee8732 the problem with (B) is that it does not address the discrepancy here.

The discrepancy here is that widening and extending highways in an attempt to reduce traffic congestion and resulting delays actually increases traffic and delays.

Notice (A) serves as a possible explanation for this discrepancy.

The reason why widening and extending highways actually increases traffic congestion and delays is because these widened and extended roads tend to attract many more motorists than used them before they were improved.

Hope that helps! Please let us know if you have any other questions.