Which subject did Milo particularly doubt the usefulness of learning?

• A. Math
• B. History
• C. Geography
• D. Science

Answer: (C)

Milo’s doubt about the usefulness of learning centers on geography. In The Phantom Tollbooth, he initially questions why studying places, maps, and how the world fits together would matter in real life. The story uses his skepticism to show that understanding geography isn’t just about memorizing names—it’s about knowing how to navigate, plan routes, and make sense of how different places connect. That practical value becomes clear as Milo travels and encounters tasks that require knowing where things are and how to get from one place to another. So geography is the subject whose usefulness Milo doubts first, which is why it’s the best answer. The other subjects aren’t singled out in the same way for doubt in this context.