Which two words are the closest synonyms?

B. refined and upgraded

Explanation:

A refined version of something is a better, more optimized version. Thus, it would be a similar way of referring to something upgraded, as both words indicate having improved with more work.

  dante alighieri wrote the divine comedy, a description of a spititual journey. when he wrote it , he was in exile. in florence, dante's native city, there was a social strife, they had political turmoil, and some of the   florentine names included in the narrative may have been a way that dante used to criticize his fellow citizens.

i prefer dogs : ) they are floofyyy