Your question is Motivation for Public Service Work. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Why are you interested in working for a postal service, and tell me about a time you chose a project, team, or responsibility because you believed in its mission or public impact. What did you do once you were in that role to turn that motivation into results?