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A recent survey shows that 86% of the passengers on international flights would not be satisfied with being served cold meals alone on flights lasting for more than 6 hours. Nutritionists agree that because the food in the warm meals served by airlines is cooked, cooled, brought back to room temperature, cooled while in storage, and then reheated again before being served, such food has either no influence, or in serious cases, a negative effect on the health levels of passengers. Based on this information, airlines would be well-advised to implement the serving of cold meals only during flights.
Which of the following, if true, most strongly supports the above conclusion?
This answer choice supports serving warm meals by stating that they take less time to prepare, even if this time is only slightly lower than that needed to make a cold meal. This weakens the argument's conclusion.
This answer choice weakens the argument's conclusion when it should be strengthening it. If the warm meals can be prepared without wasting energy, then that's one less reason to prefer cold meals to warm meals.
Although it starts off by praising cold meals (vitamins and minerals), this answer choice supports the idea that warm meals are healthy (extermination of harmful bacteria), therefore undermining the argument's position, instead of strengthening it.
This answer choice supports serving warm meals by stating that passengers often feel chilly during flights. This undermines the conclusion that cold meals are preferable, but you were supposed to strengthen it.
This answer choice strengthens the conclusion: it alleviates the public opinion factor by stating that people would be convinced that cold meals are better if they were presented with the health information regarding the issue.