A study of native born residents in an area of Adivasis found that two-thirds of the children developed considerable levels of nearsightedness after starting school, while their illiterate parents and grandparents, who had no opportunity for formal schooling, showed no signs of this disability. \[\] If the above statements are true, which of the following conclusions is most strongly supported by them?
Step-by-step Solution:
We can easily conclude that near sightedness is caused by visual stress required by reading and other class work.\[\]Choice (C)