If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

Which reward did you compare?
What restriction was unclear?
What comparison detail was missing?

Author notes / illustrative keys where applicable:
1. The reward compared establishes which alternatives the reader considered.
2. The unclear restriction identifies a condition needing verified wording.
3. The missing comparison detail shows what readers need to distinguish the choices.