Which two kingdoms are central to Milo's adventure?

• A. Digitopolis and Dictionopolis.
• B. Dictionopolis and Digitopolis.
• C. The Kingdoms of Letters and Numbers.
• D. The Realm of Silence and Sound.

Answer: (B)

The main idea being tested is recognizing the two places that drive Milo’s journey, each personifying a fundamental part of learning: language and math. In The Phantom Tollbooth, Milo travels to Dictionopolis, the kingdom where words and letters grow and are traded, and to Digitopolis, the kingdom of numbers and mining for digits. These two realms are central because the story uses them to explore why words matter and how numbers help us make sense of the world, and Milo’s adventures hinge on experiences in both places. The other options refer to different parts of the tale, but the specific, named settings that anchor Milo’s quest are Dictionopolis and Digitopolis.