All I know is the direct answer and it would be it is different because one is your thought and one if like a document
The answer is proletariat
It would be D)-So because
even though
So is before, it connects improve and literary rate
Significant. Fractional sounds like "fraction," which is typically meaning a value less than one, but not quite zero. AKA, very small.
The opposite of a very small change would be a very big change. Which is what a significant change is.