I started wasting time in the trading center playing bawo, Someone also taught me a wonderful game called chess, which I started playing every day. But chess and bawo weren't enough to keep my mind occupied. I needed a better hobby, something to trick my brain into being happy. I missed school so terribly.

—The Boy Who Harnessed the Wind,
William Kamkwamba

Choose the text evidence that best indicates to readers that Kamkwamba faced an obstacle?

I missed school so terribly.
I started wasting time in the trading center.
I started playing every day.
I needed a better hobby.