The legislature is considering a law banning the use of cellphones by people who are driving a moving car. Drivers texting and talking while driving are distracted by their phone conversations and can’t give their full attention to driving their vehicles. Banning the use of cellphones by drivers will make the roads safer.
Let`s understand the question first.
"The legislature is considering a law banning the use of cellphones by people who are driving a moving car." -> So, legislature is planning something. Next lines should answer Why?
"Drivers texting and talking while driving are distracted by their phone conversations and can’t give their full attention to driving their vehicles." -> Ok, so now we know Whis is Legislature is considering banning the use of cellphones while driving. Because drivers are distracted and can’t give their full attention to driving their vehicles.
"Banning the use of cellphones by drivers will make the roads safer." -> Notice the change here, the author goes on to state that this would make the roads safer. This is the conclusion.
We need to find a missing piece that has lead the author to this conclusion.
Notice here distraction/not being able to give full attention is linked to roads not being safer. what could be it.? "Accidents" maybe.?
Lets quickly go throught he answer choices:
(A) A study by a sociologist has shown that the use of cellphones is occasionally a contributing factor in traffic accidents. -> But this doesnot necessarily mean use of cell phones while driving, we are concerned with use of cellphones while driving. Eliminated.
(B) The proper role of the legislature is to enact laws that protect the safety of drivers and passengers in automobiles. -> We are not concerned witht he roles of legislature here. Eliminated.
(C) Drivers who hold their cellphones in their hands are more distracted than drivers who use a hands-free headset or speakerphone while driving. -> This choice compares use of cell phones handheld or hands-free headset or speakerphone. Not concerned with different modes of use. Eliminated.
(D) Because drivers talking and texting on cellphones are distracted, they are more prone to getting into accidents. -> In line with what we thought. Lets keep this for now.
(E) Many drivers engage in behavior that distracts them from their driving, such as eating, adjusting the radio, reading maps, and talking on cellphones. -> This talks about other activities are not concerned with other activities. Eliminated.
So answer choice D is the correct answer.
Lets quickly negate this choice and check if it breaks the conclusion(property of an assumption)
"Because drivers talking and texting on cellphones are distracted, they are NOT more prone to getting into accidents." Well this would break our conclusion that "Banning the use of cellphones by drivers will make the roads safer.", since drivers are NOT prone to more accidents or they are as good as others not talking on cellphone, that means banning will not make our roads any safer.