Final answer:
The Sui Dynasty in China is best known for their accomplishment of building the Grand Canal.
Step-by-step explanation:
The Sui Dynasty in China is best known for their accomplishment of building the Grand Canal (Option C).
The Grand Canal was a massive waterway system that connected the Yellow River and the Yangtze River, spanning over 1,100 miles. It played a crucial role in promoting trade, transportation, and cultural exchange between the north and south of China.
This achievement greatly contributed to the economic prosperity and unified the country during the short reign of the Sui Dynasty.
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