Your question is Compare Classifiers with ROC AUC. 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 are comparing two binary classifiers for the same problem. Both produce probability scores, and the team wants to know which one is better before choosing a decision threshold.
How would you use ROC-AUC to compare two classifiers?