Laws requiring the use of headlights during daylight hours can prevent automobile collisions. However, since daylight visibility is worse in countries farther from the equator, any such laws would obviously be more effective in preventing collisions in those countries. In fact, the only countries that actually have such laws are farther from the equator than is the continental United States.

Which of the following conclusions could be most properly drawn from the information given above?

(A) Drivers in the continental United States who used their headlights during the day would be just as likely to become involved in a collision as would drivers who did not use their headlights.
(B) In many countries that are farther from the equator than is the continental United States, poor daylight visibility is the single most important factor in automobile collisions.
(C) The proportion of automobile collisions that occur in the daytime is greater in the continental United States than in the countries that have daytime headlight laws.
(D) Fewer automobile collisions probably occur each year in countries that have daytime headlight laws than occur within the continental United States.
(E) Daytime headlight laws would probably do less to prevent automobile collisions in the continental United States than they do in the countries that have the laws.

Please provide a detailed explanation for your answers. I do not have the OE.

Thanks,
Darth

C.

Headlight laws can prevent automobile conclusions. It is more effective in countries that have poor day light. So, of the total automobile collisions that happen in those coutries, the daytime collisions are lesser than in the US.

GA

Would go with A...

Since continental US is close to the equator, the law requiring drivers to turn on the headlights wouldnt make any difference 'cos of the availability of sunlight(since it is close to equator)

IMO E is the only choice, everything else is either out of scope or far fetched.
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E for me

The answer is E.

It is interesting to see... the answers gravitating towards E. Thank you very much for participating.

Which of the following conclusions could be most properly drawn from the information given above?

(A) Drivers in the continental United States who used their headlights during the day would be just as likely to become involved in a collision as would drivers who did not use their headlights.-------- Comparing drivers driving in d same country with headlights on & off. The passage discusses about different continents. Not relevnant
(B) In many countries that are farther from the equator than is the continental United States, poor daylight visibility is the single most important factor in automobile collisions.--- No mention of 'factors' in the passage.
(C) The proportion of automobile collisions that occur in the daytime is greater in the continental United States than in the countries that have daytime headlight laws.--this is definitely a wrong conclusion. Kind of opp. answer
(D) Fewer automobile collisions probably occur each year in countries that have daytime headlight laws than occur within the continental United States.--Passage discusses about the effectiveness of daytime headlight laws. This point is not discussed in this option.
(E) Daytime headlight laws would probably do less to prevent automobile collisions in the continental United States than they do in the countries that have the laws. ---Correct

Nothing other than E are within the scope of the argument.
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The Argument: the farther away from the equator, the more important it is to use daytime headlights while driving. Indeed, countries north of the U.S. mandate the use of headlights during the day. The U.S. should also require the use of daytime headlights, though such a move would not have as much an impact on lowering collisions the way it does in more northern climes.

Based on the information above, the question is asking what we can most reasonably conclude.

(A) Drivers in the continental United States who used their headlights during the day would be just as likely to become involved in a collision as would drivers who did not use their headlights.

The argument says that the use of daylight headlights lowers the collision rate the more north of the equator you go. Therefore, daylight headlight use in the continental U.S. would help reduce the collision rate.

(B) In many countries that are farther from the equator than is the continental United States, poor daylight visibility is the single most important factor in automobile collisions.

From the prompt, we do not know anything about which other factors account for collisions in countries north of the U.S. So we can't say that poor visibility is the most important factor.

(C) The proportion of automobile collisions that occur in the daytime is greater in the continental United States than in the countries that have daytime headlight laws.

This one is tempting because you can make the connection that countries up north have to use daytime headlights, so they are less likely to get into accidents during the daytime. But we do not know what the original proportion of either the U.S or northern countries are. So while daytime headlight reduces collision rate, without knowing the original proportion, we cannot say that the U.S. has more daytime collisions.


(D) Fewer automobile collisions probably occur each year in countries that have daytime headlight laws than occur within the continental United States.

We only know that daytime headlight laws reduce the collision rate, an effect more pronounced the more north one goes. However, we do not know the total number of accidents up north. Maybe a hundred thousand accidents occur in northern countries. Maybe only ten thousand.

(E) Daytime headlight laws would probably do less to prevent automobile collisions in the continental United States than they do in the countries that have the laws.

Those countries that have the laws are the ones that are more north of the United States, and thus the ones farther from the equator. The farther from the equator, the more important the use of daytime headlights. So the use of daytime headlights in the U.S. would be helpful, but probably not so much as in countries north of the U.S. ANSWER
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Christopher Lele
Magoosh Test Prep