The correct answer is option 3: shipbuilding. Rotterdam, a city located in the Netherlands, is well-known for its shipbuilding industry. Shipbuilding refers to the construction of ships and other water vessels. Rotterdam has been a major hub for shipbuilding due to its strategic location on the North Sea and its access to major waterways. The city has a long history in shipbuilding and has played a significant role in the maritime industry. Numerous shipyards and companies involved in shipbuilding are located in Rotterdam, making it a prominent center for this industry. It is important to note that while Rotterdam is famous for shipbuilding, it is also recognized for other industries such as logistics, trade, and transportation, due to its large port and central location in Europe.