Concept:The correct opposite word must match the meaning of the underlined word and fill the gap logically.
Explanation:The underlined word is likely "cultured", meaning refined, educated, or civilized.
Its opposite should mean primitive or lacking refinement.
Among the options, "barbaric" means primitive or unsophisticated.
The other options do not give the opposite meaning: "ignorant" means lacking knowledge, "rich" means wealthy, and "arrogant" means overly proud.
Therefore, "barbaric" is the correct opposite.
Answer:C. barbaric