The statement that most accurately describes the meanings of the words "refined" and "refinement" in the context of the sentence is:
A. Refined means "cultivated and cultured"; refinement means "a state of being cultured or acting in a well-bred manner."
This choice captures the essence of how "refined" refers to a cultured and sophisticated demeanor, while "refinement" refers to the overall quality or state of being that reflects this cultivated nature. The sentence critiques the façade of civility and culture that can mask underlying savagery or inhumanity.