Argument Analysis :-

1. The argument says that Fast-food restaurants make up 45 percent of all restaurants in Cantaria.
2. Youth is a main consumer at these restaurants.
3. The average age is rising(people are moving towards old age).
4. Therefore number of restaurants are likely to decrease.

Which of the following, if true, most seriously weakens the argument?

(A) Fast-food restaurants in Canatria are getting bigger, so each one can serve more customers.
Does not matter if they become bigger. The problem will still not be solved, if the average age is rising. Irrelevant.

(B) Some older people eat at fast-food restaurants more frequently than the average young person.
This is against the premise given in the question that people tend to be young at Fast food restaurants. We cannot challenge the question stimuli. Irrelevant.

(C) Many people who rarely eat in fast-food restaurants nevertheless eat regularly in restaurants.
So what!! We are talking about how to tackle average age rising scenario. Irrelevant.

(D) The overall population of Canatria is growing steadily.
Sounds good. The overall population is growing steadily means Canatria is having a influx of newborn.They will become young one day. Hence will eat at these restaurants.
Weakens the conclusion.

(E) As the population of Canatria gets older, more people are eating at home.
This will strengthen the argument. If this is the case, restaurants are likely to decrease.
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Fast-food restaurants make up 45 percent of all restaurants in Cantaria. Customers at these restaurants tend to be young; in fact, studies have shown that the older people get, the less likely they are to eat in fast-food restaurants. Since the average age of the Canatrian population is gradually rising and will continue to do so, the number of fast-food restaurants is likely to decrease.

Which of the following, if true, most seriously weakens the argument?

(A) Fast-food restaurants in Canatria are getting bigger, so each one can serve more customers. (It means the number is not decreasing so its wrong)

(B) Some older people eat at fast-food restaurants more frequently than the average young person. (Its breaking our argument)

(C) Many people who rarely eat in fast-food restaurants nevertheless eat regularly in restaurants. ( not our concern ) wrong

(D) The overall population of Canatria is growing steadily. (Yes correct)

(E) As the population of Canatria gets older, more people are eating at home.( Thats not our concern, Are they eating at fast food restaurant or not. That is our concern( Wrong)
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