Consuming gluten, a protein composite found in foods processed from wheat and related grains, causes allergic reactions in some adults. Medical records indicate that the percentage of adults in our country who have seen a doctor for gluten allergies has increased significantly in the last four years. Either our adults have been exposed to more gluten, or they have developed a greater sensitivity to them.
Which of the following is an assumption on which the argument depends?
【选项】
In our country, either more gluten has been introduced into foods artificially, or adults have eaten more food naturally containing gluten.
选项是否正确？