The author assumes that the campaign caused the change, without ruling out other reasons. To weaken the conclusion, we need to find an answer choice that suggests "the campaign" may not have caused the change.
A. State-wide strikes among retail workers have greatly reduced the operating capacity and utility of malls and cinemas during the last three months.If malls and cinemas were not functioning properly, people would naturally stop going there and choose other places, such as parks.
So the shift could be due to the strikes, not the campaign.
This gives a strong alternative explanation.
Correct.
B. The governor frequently visits public parks and nature reserves herself.This tells us nothing about why other people changed their behavior.
C. Admission prices for all public parks and nature reserves in the state have risen by an average of seven percent over the last three months.Higher prices should discourage people from visiting parks, but visits increased.
This actually strengthens the argument.
D. The number of public parks and nature reserves in the state is exactly the same now as it was at this time last year.This does not explain why people shifted from indoor to outdoor activities.
E. According to surveys, longtime visitors to the state’s public parks and nature reserves are no more satisfied with them than they were before the campaign began.Satisfaction of existing visitors does not explain why more people started visiting parks.
Ans (A)ExpertsGlobal5
Three months ago, the governor began her public health campaign encouraging people to take advantage of the state’s many public parks and nature reserves, rather than spending time at cinemas and malls. Since then, there has been an eleven percent decrease in cinema attendance and mall foot traffic in the state and an equivalent increase in visitors to public parks and nature reserves. Clearly, the governor’s campaign has encouraged many people to venture outside rather than entertain themselves indoors.
Which of the following, if true, casts the most serious doubt on the conclusion drawn above?
A. State-wide strikes among retail workers have greatly reduced the operating capacity and utility of malls and cinemas during the last three months.
B. The governor frequently visits public parks and nature reserves herself.
C. Admission prices for all public parks and nature reserves in the state have risen by an average of seven percent over the last three months.
D. The number of public parks and nature reserves in the state is exactly the same now as it was at this time last year.
E. According to surveys, longtime visitors to the state’s public parks and nature reserves are no more satisfied with them than they were before the governor’s public health campaign began.
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