【正确答案】 C

【答案解析】综观文章第三段，尤其是本段中最后两句“The show focuses on the improvement of society and an individual's quality of life．Topics range from teaching your children responsibility，managing your work week，to getting to know your neighbors．”，可推知Oprah的节目的主题是社会和个人生活质量问题，故只有[C]项在此范围之内，是正确答案。