Which ruler is credited with starting the Grand Canal system in China?

• A. Kangxi
• B. Taizong
• C. Hongwu
• D. Yangdi

Answer: (D)

This question tests your understanding of why the Grand Canal was built and who initiated it. The Grand Canal was a massive infrastructure project designed to knit together northern and southern China so grain and supplies could move quickly to the capital and frontiers, strengthening centralized administration and military logistics.

The ruler credited with starting the Grand Canal is Yangdi of the Sui dynasty. He launched and directed extensive canal construction in the early 7th century, linking the Yellow River basin in the north with the Yangtze River basin in the south. This connected network allowed vast quantities of grain and other goods to flow from the agriculturally rich south to the northern capital and imperial forces, boosting state power and integration.

The other rulers listed come from later periods and did not initiate the project. Kangxi is from the Qing dynasty, Taizong from the Tang, and Hongwu founded the Ming dynasty; none started the canal system as Yangdi did.