Final answer:
In curling, the last stone played in an end is known as the hammer, offering a strategic advantage by allowing the team with the hammer to make the final play of that end.
Step-by-step explanation:
The name of the last stone played in an end of curling is B. Hammer. The hammer is a curling term that refers to the last stone thrown in an end. Teams strive for the advantage of having the hammer because it allows them the final attempt to either score points or defend against the opposing team's score in that end. The strategy involved in deciding when to use the hammer can be critical to the outcome of the game.