The succeeding Song dynasty differed from the Tang in that

(A) the Song abolished the Confucian civil service exams (B) the Song sponsored Buddhism to the detriment of Taoism and Confucianism (C) the Song pursued a less expansive foreign policy (D) the Song dynasty was originally from outside of ChinaExplanation: The Song might have revitalized China to new and impressive heights but Song emperors were not nearly as interested in territorial expansion as the Tang emperors were. Eliminate (A) because the civil service exams were halted during the Yuan Dynasty, not the Song. Eliminate (B) because the Song Dynasty fostered the intellectual movement that would eventually culminate in Neo Confucianism. Eliminate (D) because the Yuan Dynasty, the dynasty Kublai Khan founded, was Mongolian in origin.