Concept:The antonym of a word has the opposite meaning. “Affluent” means having great wealth, so its opposite means extremely poor. Explanation:“Affluent” describes someone with abundant money and possessions. Example: an affluent neighborhood with mansions.“Destitute” means lacking basic necessities like food and shelter — extreme poverty. Example: charity helping destitute families.The other options are synonyms, not antonyms: Wealthy, Rich, and Prosperous all mean having money or success.Thus, the direct opposite of “affluent” is “destitute”. Answer:C. Destitute