Antonym of UNCOUTH

Answer: Option C

Uncouth : lacking good manners, refinement, or grace.
Crude : in a natural or raw state; not yet processed or refined.
Awkward : causing difficulty; hard to do or deal with.
Courteous : polite, respectful, or considerate in manner.
Refined : with impurities or unwanted elements having been removed by processing.

Antonym of Uncouth is Courteous