Final answer:
Singapore is the ASEAN member that has the World's second-largest container port, thanks to its strategic location and comprehensive trade infrastructure (option 1).
Step-by-step explanation:
Among the ASEAN members, it is Singapore that has the World's second-largest container port. Singapore's port is one of the busiest in Asia and serves as a major hub for shipping as well as high-tech manufacturing. The strategic location of Singapore on a major shipping lane, along with its comprehensive global airline connections, has played a pivotal role in its development into an economic powerhouse within Southeast Asia.
Hence, the answer is option 1.