darn
Hi
mikemcgarryCould you please clear my doubt.
option D, the OA says that: Because of additional safety requirements, the frame and doors of Zincstone Motors' standard two-door models were three times as expensive as standard four-door frame and doors.
My doubt is that we are assuming that both 2 door and 4 door models sell for the same price, the manufacturers could price the 2 door models considerably higher than the 4 door models to offset this extra cost.
The question stem also mentions that two-door models are highly sought after, so there is no reason to believe that the 2 door model cars will not sell.
I feel that options A and B are better than D, though I am aware that these options have their limitations.
Dear
darn,
I'm happy to respond.

I wrote this question, and then my friend Chris Lele edited it, so I put the updated version above--just choice (D) was modified slightly.
There are a few problems in your reasoning. The prompt begins
"
Traditionally,
the most highly sought cars have been the "sports cars" and similar two-door models. . . ."
That first word is an important context word that you need to understand. When something is said to be true "
traditionally," that's often code for "
it's not true any more!" If something has been true and continues to be true, there would be no reason to use that word. Thus, we cannot naively assume that two-door cars automatically will sell.
Second, (D) says "
the cost of frame and doors" tripled. Do you understand what the "
frame" of a car is? These and the doors are major components of a car, so if these costs triples, the cost of the car might nearly triple. I don't know how well you understand the
Law of Supply and Demand, but there are very very few large items that would still sell if their price tripled.
There are a number of problems with your arguments against (D).
Both (A) & (B) are well designed traps. Both are legitimate reasons why "
Zincstone Motors" might
reduce the number of two-door cars its produces, but neither would explain why this production would be absolutely halted.
Does all this make sense?
Mike