Surveys in Domorica indicate that only 10 percent of Domoricans in their twenties read a newspaper regularly, while more than half of all Domoricans over thirty read a newspaper regularly. Although Domoricans in their twenties constitute a large proportion of the population, newspaper publishers nonetheless predict that ten years from now, the percentage of Domoricans who regularly read a newspaper will probably be no lower than it is today.
Which of the following, if true, provides the strongest grounds for the newspaper publishers' prediction?
The number of Domoricans in their twenties is less than the number of Domoricans over thirty.
The number of newspapers in Domorica has been gradually increasing over the past several decades.
The proportion of Domoricans in their twenties who regularly read a newspaper has always been low.
The surveys defined a regular reader of a newspaper as someone who reads a newspaper more than twice a week.
The proportion of Domoricans who regularly read a newspaper was higher 20 years ago than it is today.
People in 20s - 10% read newspaper
People in 30s - 50% read newspaper
You might expect that since the younger generation is not reading the paper much, after some years, the % of people reading the paper will decrease. But the publishers claim that after some years, the % of people reading the paper will stay the same. How can you strengthen it?
What I think will strengthen it: People start reading the paper as they get older or something similar
Option (C) tells you that proportion of people reading the paper in their 20s has always been low. Hence, people who are right now in their 30s were also not reading the paper much when they were in their 20s. Which means that they start reading the paper at a later age. This strengthens the publishers' claim.
B, D and E are out of scope and needn't be considered at all.
As for (A), what we are interested in is the % of paper readers within each age bracket. Whether people in 20s are more or people in 30s are more doesn't matter. We need to keep the % of people reading the paper the same.
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