I want to know the answer to the following question:
What river was one of the Grand Canal of China's hinterlands?
All the background I'm provided with is that "The Canal regularly transported grains and resources from Zhejiang, through its metropolitan center Hangzhou (and its hinterland along both the Zhe River and the shores of Hangzhou Bay), and from Suzhou, and thence to the North China Plain.". Is that enough to answer the question?
Answer: yes