Final answer:
Shenzhen is China's third largest industrial city after Shanghai and Beijing, and the fastest growing one, known for its booming manufacturing and high-tech industries.
Step-by-step explanation:
The correct answer to the question is Shenzhen. This city has become China's third largest industrial city after Shanghai and Beijing, growing from a small city of about 350,000 people in the 1980s to a metropolis of over 10 million by 2010. It is known as a hub for manufacturing, trade, and innovation, particularly in high-tech industries such as electronics. Shenzhen has built its own port and has become a magnet for international trade, with large trading partners like Walmart Corporation. It is representative of China's rapid economic growth, enabled by a combination of inexpensive labor, high technology, and aggressive exports.