Final answer:
In Norse mythology, the three Level One worlds are Asgard, Vanaheim, and Alfheim.
Step-by-step explanation:
The correct answer is Asgard, Vanaheim, and Alfheim. These three worlds are part of Norse mythology, which is a collection of myths and stories from ancient Scandinavia. In Norse mythology, Asgard is the realm of the gods, Vanaheim is the realm of the Vanir gods, and Alfheim is the realm of the elves.
Learn more about Norse mythology