单选题 While we may be interested in the possibilities of social harmony and individual fulfillment that may be achieved through nontraditional education, one cannot help being______about accepting any such program as a______the world's ills.

• (A) concerned … warning of
• (B) cautious … panacea for
• (C) fastidious … prescription for
• (D) reticent … renovation of
• (E) agitated … postscript to