Your question is Verify Bug Fix Before Closure. 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).
You’ve been asked to retest a defect that a developer marked as fixed in the team’s issue tracker. Before closing it, you need to make sure the original problem is resolved, the fix works in the intended environment, and nothing related has broken as a result.
How do you verify that a bug has been fixed before closing it?