Final answer:
The Caspian Sea is a landlocked lake with no outlet.
Step-by-step explanation:
The correct answer is b) Caspian Sea. The Caspian Sea is a landlocked lake located between Europe and Asia, bordered by Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan. It is the largest inland body of water in the world and has no outlet, meaning it does not drain into any other sea or ocean. Despite being called a sea, it is technically a lake because it is not connected to an ocean or sea.