Your question is Choose the Right Validation Method. 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 evaluating a predictive model for a real business use case, and the team is debating which validation setup to trust. The data has clear structure, and the wrong split could make the model look better than it really is.
How would you choose the right validation technique for a predictive model?