T1W7 TS Q02 – Selective High School

It is commonly believed that eating large amounts of chocolate causes headaches. Many people who are prone to headaches report that their headaches often occur shortly after they have eaten a large amount of chocolate. Therefore, eating large amounts of chocolate causes headaches.

Which one of the following, if true, most weakens the above argument?

Some people who eat large amounts of chocolate do not experience headaches afterward. People who are feeling stressed or depressed are more likely to eat large amounts of chocolate, and stress and depression are known to trigger headaches. The number of reported headaches increases during holiday seasons, when people also tend to eat more chocolate. People who avoid chocolate entirely report fewer headaches than those who regularly eat large amounts of chocolate.

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Which one of the following, if true, most weakens the above argument?