Politician: The bill that makes using car phones while driving illegal should be adopted. My support of this bill is motivated by a concern for public safety. Using a car phone seriously distracts the driver, which in turn poses a threat to safe driving. People would be deterred from using their car phones while driving if it were illegal to do so.
The argument’s main conclusion follows logically if which one of the following is assumed?
(A) The more attention one pays to driving, the safer a driver one is.
(B) The only way to reduce the threat to public safety posed by car phones is through legislation.
(C) Some distractions interfere with one’s ability to safely operate an automobile.
(D) Any proposed law that would reduce a threat to public safety should be adopted.
(E) Car phone use by passengers does not distract the driver of the car.
Only C and D are the contenders. The problem arises for two reasons - what is the exact conclusion of the passage and which one of the two options choices are better than other.
Conclusion is 'The bill that makes using car phones while driving illegal should be adopted'. However, 'people would be deterred from using their car phones while driving if it were illegal to do so' does stand to be confusing enough as a conclusion. This problem can be resolved by doing a causality test i.e. which one preceeds the other, thus the first sentence is the conclusion.
Among the two choices C and D, C loses because it can be possible that some distractions don't interfere with one's ability to operate safely. Thus, in that case the conclusion still holds. So, what would strengthen conclusion.
If the law is not effective then conclusion falls apart. D tells us that a law which reduces the threat must be adopted, if it does not then the conclusion falls apart.
I don't know about how 'any' or 'not all' work but thinking it logically helps.
Answer D.