Which piece of evidence is actually quoted from the text and supports inference that the first contact lenses were not practical?

"plastic contact lenses were smaller lighter and less likely to scratch or break"

Explanation:

i think this is the answer because it is comparing the first contact lenses with the developed lenses and is favouring the plastic lenses, this shows the insignificance and impracticality of the first lense.

the use supports it by making it seem like the dictators are not bad to the people when the truly are.