Fairly straightforward question. The correct answer -
option DPassage Analysis- Before 1966, most cars in Morodia did not have Power Steering (PS) and Safety Belts (SB)
- Starting in 1966, all new cars in Morodia were required to have PS and SB
- In 1966, 1/7th of cars were replaced with new cars
- PS helps prevent collision, SB helps prevent injuries in case collisions occur
Paradox: Despite a greater proportion of "safer" cars (having PS and SB), the number of car collisions and collision related injuries did not decline in 1966
Prethinking: What can explain this paradox?
Key Question: When will the number of collisions, collision related injuries not decline, despite a greater proportion of safer cars in Morodia?
1. What if the older cars (the ones without PS and SB) were involved in a significantly greater number of accidents (collisions, and related injuries)? Such that it compensated for any reduction thanks to the new cars, keeping the overall accident level at the same. That can explain the paradox
2. What if a different third factor caused a significant number of accidents among the new cars? Example: driver complacency. Drivers believing that PS and SB will keep them safe and not driving carefully, leading to accidents despite PS and SB.
Option Choice Analysis(A) Because of a driver-education campaign, most drivers and passengers in cars that did have safety belts used them in 1966.
This only increases belief that collision related injuries should be lesser because SB was used. This only accentuates the paradox instead of resolve it
(B) Most of the new cars bought in 1966 were bought in the months of January and February.
Again, this does not help resolve the paradox. It tells us that a majority of new cars were bought as early as Jan and Feb. Which only adds more credibility to the paradox. if a lot of new cars (with PS and SB) were on the roads as early as Jan/Feb, and despite this, for the year 1966, the number of collisions did not decline, we still need to wonder why. The paradox does not get resolved
(C) In 1965, substantially more than one-seventh of the cars in Morodia were replaced with new cars.
Irrelevant. The replacement with new cars which have PS and SB only happened in 1966. The replacement which happened in 1965 is irrelevant
(D) An excessive reliance on the new safety features led many owners of new cars to drive less cautiously in 1966 than before.In line with our prethinking idea 2. A third factor which has impacted the number of collisions - Driver complacency. Option D says that drivers rode less cautiously because of an excessive reliance on PS and SB. This can explain why despite PS and SB, and more such cars on the road, the number of collisions still stayed the same. Drivers stopped being as careful as earlier
(E) The seat belts and power steering put into new cars sold in 1966 had to undergo strict quality-control inspections by manufacturers, whether the cars were manufactured in Morodia or not.
This again does not resolve the paradox. It increases the belief that PS and SB should have worked well to reduce the number of collisions. Why then did this number not decrease?
Hope this helps!
Regards
Harsha