Teenagers and textbook authors think differently

I laughed so hard a tear slid down the right side of my nose after one of my eleventh grade students read this question from a listening exercise in our Upstream Upper Intermediate B2+ textbook (p. 12) a little bit differently:

7. You hear a couple talking in a cafe. How does the man feel about what the woman is showing him?

1. He is convinced he needs it.
2. He doesn't understand it.
3. He think's it's too expensive.

The correct answer is he thought is was too expensive!