Answer to Question 1
C
Wilson's disease causes excessive accumulation of copper. Excessive accumulation of iron is called hemosiderosis. Excessive accumulation of zinc and chromium does not have specific names.
Answer to Question 2
A
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Many features or articles fail to identify how much or little of the food should be eaten, how often it should be eaten, or to whom the advice applies. This does not give the consumer enough information to appropriately judge what the study means to them personally.