Ok, here's my take:
Crenkotown, USA has a large population of Korean Americans. Some of them make a living by delivering otherwise hard to find comforts of home to their fellow countrymen and women. In Crenkotown, between 1957 and 1971, commercial delivers of kimchi- a staple Korean food-increased from 12 to 25. However, during the same time period the number of Koreans living in Crenkotown stayed roughly constant. Therefore, it is unlikely that many more Crenkotownies had kimchi delivered in 1971 than in 1957.
The conclusion rests on which of the following assumptions ?
A. In 1971, most Korean-Americans living in Crenkotown purchased kimchi deliverires from a commercial delivery service-
This statement is relevant but it fails to provide a comparison with relevant numbers in 1957. Hence can be eliminated.B. In 1971, almost all of those who wanted kimchi delivered were within the range of a delivery service
Same as AC. Not all of the kimchi available for delivery in Crenkotown in 1971 were of the same variety pr quality
Quality is irelevant. OFS. D. None of the commercial operations that started delivering kimchi after 1957 serviced areas in Crenkotown that didn't formerly have delivery service.
This correctly states that the delivery range has not changed from 1957. The negation test will establish this is the correct answer.E. Per capita demand for kimchi among Korean-Americans in Crenkotown want unchanged from 1957 to 1971.
The argument clearly states that the number of people living in Crenkotown has remained unchanged. So, this statement would essentially weaken the conclusion. While we need to find information that would make the conclusion true -Incorrect! It took me 4 min to get this one, so would have essentially gotten it wrong on the actual test!