Which of the following statements is not a valid observation about the Sui Dynasty? a. It employed Buddhism as a unifying force in the country. b. It was responsible for the building of the Grand Canal, connecting the Yellow and Yangtze Rivers. c. It came to an abrupt end with the assassination of its emperor. d. Its policies helped the lower Yangtze region become a major part of China's economy. e. It permanently incorporated Korea into the Chinese domain. 2 points QUESTION 21